diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/Constants.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/Constants.kt
index 6286baa..6478c24 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/Constants.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/Constants.kt
@@ -37,9 +37,9 @@ object Constants {
         const val RECIPE_IMAGES = "$IMAGES/recipes"
     }
 
-    object HeaderNames {
-        const val ACCESS_CONTROL_EXPOSE_HEADERS = "Access-Control-Expose-Headers"
-        const val AUTHORIZATION = "Authorization"
+    object JwtType {
+        const val USER = 0
+        const val GROUP = 1
     }
 
     object ModelNames {
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/GroupTokenAuthenticationProvider.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/GroupTokenAuthenticationProvider.kt
index d865f45..f0bf5fc 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/GroupTokenAuthenticationProvider.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/GroupTokenAuthenticationProvider.kt
@@ -1,30 +1,56 @@
 package dev.fyloz.colorrecipesexplorer.config.security
 
+import dev.fyloz.colorrecipesexplorer.dtos.account.GroupTokenDto
 import dev.fyloz.colorrecipesexplorer.dtos.account.UserDetails
 import dev.fyloz.colorrecipesexplorer.exception.NotFoundException
 import dev.fyloz.colorrecipesexplorer.logic.account.GroupTokenLogic
+import mu.KotlinLogging
 import org.springframework.security.authentication.AuthenticationProvider
 import org.springframework.security.authentication.BadCredentialsException
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken
 import org.springframework.security.core.Authentication
+import org.springframework.security.core.AuthenticationException
 import java.util.*
 
 class GroupTokenAuthenticationProvider(private val groupTokenLogic: GroupTokenLogic) : AuthenticationProvider {
+    private val logger = KotlinLogging.logger {}
+
     override fun authenticate(authentication: Authentication): Authentication {
         val groupAuthenticationToken = authentication as GroupAuthenticationToken
-        val groupToken = retrieveGroupToken(groupAuthenticationToken.id)
+
+        val groupToken = try {
+            retrieveGroupToken(groupAuthenticationToken.id)
+        } catch (e: AuthenticationException) {
+            logger.debug(e.message)
+            throw e
+        }
 
         val userDetails =
-            UserDetails(groupToken.id.toString(), groupToken.name, "", groupToken.group, groupToken.group.permissions)
+            UserDetails(
+                groupToken.id.toString(),
+                groupToken.name,
+                "",
+                groupToken.group,
+                groupToken.group.permissions,
+                true
+            )
         return UsernamePasswordAuthenticationToken(userDetails, null, userDetails.authorities)
     }
 
     override fun supports(authentication: Class<*>) =
         authentication.isAssignableFrom(GroupAuthenticationToken::class.java)
 
-    private fun retrieveGroupToken(id: UUID) = try {
-        groupTokenLogic.getById(id)
-    } catch (_: NotFoundException) {
-        throw BadCredentialsException("Failed to find group token with id '$id'")
+    private fun retrieveGroupToken(id: UUID): GroupTokenDto {
+        val groupToken = try {
+            groupTokenLogic.getById(id)
+        } catch (_: NotFoundException) {
+            throw BadCredentialsException("Failed to find group token with id '$id'")
+        }
+
+        if (groupTokenLogic.isDisabled(groupToken.id.toString())) {
+            throw BadCredentialsException("Group token '${groupToken.id}' is disabled")
+        }
+
+        return groupToken
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/SecurityConfig.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/SecurityConfig.kt
index a9fe540..fdb2984 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/SecurityConfig.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/SecurityConfig.kt
@@ -101,7 +101,7 @@ abstract class BaseSecurityConfig(
                 BasicAuthenticationFilter::class.java
             )
             .addFilter(
-                JwtAuthorizationFilter(jwtLogic, authenticationManager())
+                JwtAuthorizationFilter(jwtLogic, groupTokenLogic, authManager)
             )
             .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
             .and()
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/filters/JwtAuthorizationFilter.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/filters/JwtAuthorizationFilter.kt
index 52f5a43..cb7e30c 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/filters/JwtAuthorizationFilter.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/config/security/filters/JwtAuthorizationFilter.kt
@@ -1,13 +1,16 @@
 package dev.fyloz.colorrecipesexplorer.config.security.filters
 
 import dev.fyloz.colorrecipesexplorer.Constants
+import dev.fyloz.colorrecipesexplorer.dtos.account.UserJwt
+import dev.fyloz.colorrecipesexplorer.logic.account.GroupTokenLogic
 import dev.fyloz.colorrecipesexplorer.logic.account.JwtLogic
-import dev.fyloz.colorrecipesexplorer.logic.account.UserJwt
 import dev.fyloz.colorrecipesexplorer.utils.parseBearer
 import io.jsonwebtoken.ExpiredJwtException
+import mu.KotlinLogging
 import org.springframework.security.authentication.AuthenticationManager
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken
 import org.springframework.security.core.Authentication
+import org.springframework.security.core.AuthenticationException
 import org.springframework.security.core.context.SecurityContextHolder
 import org.springframework.security.web.authentication.www.BasicAuthenticationFilter
 import org.springframework.web.util.WebUtils
@@ -17,10 +20,11 @@ import javax.servlet.http.HttpServletResponse
 
 class JwtAuthorizationFilter(
     private val jwtLogic: JwtLogic,
+    private val groupTokenLogic: GroupTokenLogic,
     authenticationManager: AuthenticationManager
 ) : BasicAuthenticationFilter(authenticationManager) {
     override fun doFilterInternal(request: HttpServletRequest, response: HttpServletResponse, chain: FilterChain) {
-        val authorizationCookie = WebUtils.getCookie(request, Constants.HeaderNames.AUTHORIZATION)
+        val authorizationCookie = WebUtils.getCookie(request, Constants.CookieNames.AUTHORIZATION)
 
         // If there is no authorization cookie, the user is not authenticated
         if (authorizationCookie == null) {
@@ -30,6 +34,8 @@ class JwtAuthorizationFilter(
 
         val authorizationToken = authorizationCookie.value
         if (!isJwtValid(authorizationToken)) {
+            logger.debug("Received request with invalid ${Constants.CookieNames.AUTHORIZATION} cookie")
+
             chain.doFilter(request, response)
             return
         }
@@ -47,8 +53,14 @@ class JwtAuthorizationFilter(
             val jwt = parseBearer(authorizationToken)
             val user = jwtLogic.parseUserJwt(jwt)
 
+            if (user.isGroup && groupTokenLogic.isDisabled(user.id)) {
+                logger.debug("Rejected authorization for disabled group token '${user.id}'")
+                return null
+            }
+
             getAuthentication(user)
         } catch (_: ExpiredJwtException) {
+            logger.debug("Rejected authorization for expired JWT")
             null
         }
     }
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/dtos/account/GroupTokenDto.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/dtos/account/GroupTokenDto.kt
index 8708ed2..6277fdc 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/dtos/account/GroupTokenDto.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/dtos/account/GroupTokenDto.kt
@@ -8,7 +8,7 @@ data class GroupTokenDto(
 
     val name: String,
 
-    val isValid: Boolean,
+    val enabled: Boolean,
 
     val group: GroupDto
 )
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/dtos/account/UserDto.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/dtos/account/UserDto.kt
index 1dbb98a..6216a76 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/dtos/account/UserDto.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/dtos/account/UserDto.kt
@@ -5,7 +5,7 @@ import dev.fyloz.colorrecipesexplorer.Constants
 import dev.fyloz.colorrecipesexplorer.SpringUserDetails
 import dev.fyloz.colorrecipesexplorer.dtos.EntityDto
 import dev.fyloz.colorrecipesexplorer.model.account.Permission
-import dev.fyloz.colorrecipesexplorer.model.account.toAuthority
+import org.springframework.security.core.GrantedAuthority
 import java.time.LocalDateTime
 import javax.validation.constraints.NotBlank
 import javax.validation.constraints.Size
@@ -67,12 +67,15 @@ data class UserUpdateDto(
 
 data class UserLoginRequestDto(val id: Long, val password: String)
 
+data class UserJwt(val id: String, val authorities: Collection<GrantedAuthority>, val isGroup: Boolean)
+
 class UserDetails(
     val id: String,
     private val username: String,
     private val password: String,
     val group: GroupDto?,
-    val permissions: Collection<Permission>
+    val permissions: Collection<Permission>,
+    val isGroup: Boolean = false
 ) : SpringUserDetails {
     constructor(user: UserDto) : this(user.id.toString(), user.fullName, user.password, user.group, user.permissions)
 
@@ -94,4 +97,4 @@ data class UserLoginResponse(
     val groupId: Long?,
     val groupName: String?,
     val permissions: Collection<Permission>
-)
\ No newline at end of file
+)
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/GroupTokenLogic.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/GroupTokenLogic.kt
index da5d927..f689530 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/GroupTokenLogic.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/GroupTokenLogic.kt
@@ -8,13 +8,17 @@ import dev.fyloz.colorrecipesexplorer.exception.AlreadyExistsException
 import dev.fyloz.colorrecipesexplorer.exception.NotFoundException
 import dev.fyloz.colorrecipesexplorer.logic.BaseLogic
 import dev.fyloz.colorrecipesexplorer.service.account.GroupTokenService
-import java.util.UUID
+import java.util.*
+import javax.annotation.PostConstruct
 
 interface GroupTokenLogic {
+    fun isDisabled(id: String): Boolean
     fun getAll(): Collection<GroupTokenDto>
     fun getById(id: String): GroupTokenDto
     fun getById(id: UUID): GroupTokenDto
     fun save(dto: GroupTokenSaveDto): GroupTokenDto
+    fun enable(id: String): GroupTokenDto
+    fun disable(id: String): GroupTokenDto
     fun deleteById(id: String)
 }
 
@@ -24,30 +28,50 @@ class DefaultGroupTokenLogic(private val service: GroupTokenService, private val
     private val typeName = Constants.ModelNames.GROUP_TOKEN
     private val typeNameLowerCase = typeName.lowercase()
 
-    override fun getAll() = service.getAll()
+    private val enabledTokensCache = hashSetOf<String>()
 
+    @PostConstruct
+    fun initEnabledTokensCache() {
+        val tokensIds = getAll().filter { it.enabled }.map { it.id.toString() }
+        enabledTokensCache.addAll(tokensIds)
+    }
+
+    override fun isDisabled(id: String) = !enabledTokensCache.contains(id)
+    override fun getAll() = service.getAll()
     override fun getById(id: String) = getById(UUID.fromString(id))
 
-    override fun getById(id: UUID) =
-        service.getById(id) ?: throw notFoundException(value = id)
+    override fun getById(id: UUID) = service.getById(id) ?: throw notFoundException(value = id)
 
     override fun save(dto: GroupTokenSaveDto): GroupTokenDto {
         throwIfNameAlreadyExists(dto.name)
 
         val token = GroupTokenDto(
-            generateUniqueUUIDForName(dto.name),
-            dto.name,
-            true,
-            groupLogic.getById(dto.groupId)
+            generateUniqueUUIDForName(dto.name), dto.name, true, groupLogic.getById(dto.groupId)
         )
 
-        return service.save(token)
+        val savedToken = service.save(token)
+        enabledTokensCache.add(savedToken.id.toString())
+
+        return savedToken
+    }
+
+    override fun enable(id: String) = setEnabled(id, true).also {
+        enabledTokensCache.add(id)
+    }
+
+    override fun disable(id: String) = setEnabled(id, false).also {
+        enabledTokensCache.remove(id)
     }
 
     override fun deleteById(id: String) {
+        enabledTokensCache.remove(id)
         service.deleteById(UUID.fromString(id))
     }
 
+    private fun setEnabled(id: String, enabled: Boolean) = with(getById(id)) {
+        service.save(this.copy(enabled = enabled))
+    }
+
     private fun generateUniqueUUIDForName(name: String): UUID {
         var id = generateUUIDForName(name)
 
@@ -59,8 +83,7 @@ class DefaultGroupTokenLogic(private val service: GroupTokenService, private val
         return id
     }
 
-    private fun generateUUIDForName(name: String) =
-        UUID.nameUUIDFromBytes(name.toByteArray())
+    private fun generateUUIDForName(name: String) = UUID.nameUUIDFromBytes(name.toByteArray())
 
     private fun throwIfNameAlreadyExists(name: String) {
         if (service.existsByName(name)) {
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/JwtLogic.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/JwtLogic.kt
index b2b6c38..4b0a971 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/JwtLogic.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/JwtLogic.kt
@@ -4,14 +4,13 @@ import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.module.kotlin.readValue
 import dev.fyloz.colorrecipesexplorer.config.properties.CreSecurityProperties
 import dev.fyloz.colorrecipesexplorer.dtos.account.UserDetails
+import dev.fyloz.colorrecipesexplorer.dtos.account.UserJwt
 import dev.fyloz.colorrecipesexplorer.model.account.Permission
-import dev.fyloz.colorrecipesexplorer.model.account.toAuthority
 import dev.fyloz.colorrecipesexplorer.utils.base64encode
 import dev.fyloz.colorrecipesexplorer.utils.toDate
 import io.jsonwebtoken.Jwts
 import io.jsonwebtoken.jackson.io.JacksonDeserializer
 import io.jsonwebtoken.jackson.io.JacksonSerializer
-import org.springframework.security.core.GrantedAuthority
 import org.springframework.stereotype.Service
 import java.time.Instant
 import java.util.*
@@ -41,11 +40,15 @@ class DefaultJwtLogic(
         securityProperties.jwtSecret.base64encode()
     }
 
+    private val permissionsById = Permission.values()
+        .associateBy { it.id }
+
     // Must be a new instance every time, or data from the last token will still be there
-    private val jwtBuilder get() =
-        Jwts.builder()
-            .serializeToJsonWith(JacksonSerializer<Map<String, *>>(objectMapper))
-            .signWith(secretKey)
+    private val jwtBuilder
+        get() =
+            Jwts.builder()
+                .serializeToJsonWith(JacksonSerializer<Map<String, *>>(objectMapper))
+                .signWith(secretKey)
 
     private val jwtParser by lazy {
         Jwts.parserBuilder()
@@ -54,12 +57,17 @@ class DefaultJwtLogic(
             .build()
     }
 
-    override fun buildUserJwt(userDetails: UserDetails): String =
-        jwtBuilder
+    override fun buildUserJwt(userDetails: UserDetails): String {
+        val permissionsIds = userDetails.permissions.map { it.id }
+        val type = if (userDetails.isGroup) JWT_TYPE_GROUP else JWT_TYPE_USER
+
+        return jwtBuilder
             .setSubject(userDetails.id)
             .setExpiration(getCurrentExpirationDate())
-            .claim(JWT_CLAIM_PERMISSIONS, objectMapper.writeValueAsString(userDetails.permissions))
+            .claim(JWT_CLAIM_PERMISSIONS, objectMapper.writeValueAsString(permissionsIds))
+            .claim(JWT_CLAIM_TYPE, type)
             .compact()
+    }
 
     override fun buildGroupTokenIdJwt(groupTokenId: UUID): String =
         jwtBuilder
@@ -70,13 +78,17 @@ class DefaultJwtLogic(
         val parsedJwt = jwtParser.parseClaimsJws(jwt)
 
         val serializedPermissions = parsedJwt.body.get(JWT_CLAIM_PERMISSIONS, String::class.java)
-        val permissions = objectMapper.readValue<Collection<Permission>>(serializedPermissions)
+        val permissionsIds = objectMapper.readValue<Collection<Int>>(serializedPermissions)
+        val permissions = permissionsIds.map { permissionsById[it]!! }
+
+        val type = parsedJwt.body[JWT_CLAIM_TYPE] as Int
+        val isGroup = type == JWT_TYPE_GROUP
 
         val authorities = permissions
             .map { it.toAuthority() }
             .toMutableList()
 
-        return UserJwt(parsedJwt.body.subject, authorities)
+        return UserJwt(parsedJwt.body.subject, authorities, isGroup)
     }
 
     override fun parseGroupTokenIdJwt(jwt: String): UUID {
@@ -90,8 +102,10 @@ class DefaultJwtLogic(
             .toDate()
 
     companion object {
-        private const val JWT_CLAIM_PERMISSIONS = "permissions"
+        private const val JWT_CLAIM_PERMISSIONS = "perms"
+        private const val JWT_CLAIM_TYPE = "type"
+
+        private const val JWT_TYPE_USER = 0
+        private const val JWT_TYPE_GROUP = 1
     }
 }
-
-data class UserJwt(val id: String, val authorities: Collection<GrantedAuthority>)
\ No newline at end of file
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/UserLogic.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/UserLogic.kt
index 6725b2c..3916d89 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/UserLogic.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/logic/account/UserLogic.kt
@@ -114,7 +114,7 @@ class DefaultUserLogic(
     }
 
     override fun logout(request: HttpServletRequest) {
-        val authorizationCookie = WebUtils.getCookie(request, Constants.HeaderNames.AUTHORIZATION)
+        val authorizationCookie = WebUtils.getCookie(request, Constants.CookieNames.AUTHORIZATION)
         if (authorizationCookie != null) {
             val authorizationToken = authorizationCookie.value
             if (authorizationToken != null && authorizationToken.startsWith("Bearer")) {
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/model/account/Permission.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/model/account/Permission.kt
index abd2fb0..ecc0928 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/model/account/Permission.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/model/account/Permission.kt
@@ -4,32 +4,34 @@ import org.springframework.security.core.GrantedAuthority
 import org.springframework.security.core.authority.SimpleGrantedAuthority
 
 enum class Permission(
-    val impliedPermissions: List<Permission> = listOf(),
+    val id: Int,
+    private val impliedPermissions: List<Permission> = listOf(),
     val deprecated: Boolean = false
 ) {
-    READ_FILE,
-    WRITE_FILE(listOf(READ_FILE)),
+    READ_FILE(0),
+    WRITE_FILE(1, listOf(READ_FILE)),
 
-    VIEW_RECIPES(listOf(READ_FILE)),
-    VIEW_CATALOG(listOf(READ_FILE)),
-    VIEW_USERS,
+    VIEW_RECIPES(2, listOf(READ_FILE)),
+    VIEW_CATALOG(3, listOf(READ_FILE)),
+    VIEW_USERS(4),
 
-    EDIT_RECIPES_PUBLIC_DATA(listOf(VIEW_RECIPES)),
-    EDIT_RECIPES(listOf(EDIT_RECIPES_PUBLIC_DATA, WRITE_FILE)),
-    EDIT_MATERIALS(listOf(VIEW_CATALOG, WRITE_FILE)),
-    EDIT_MATERIAL_TYPES(listOf(VIEW_CATALOG)),
-    EDIT_COMPANIES(listOf(VIEW_CATALOG)),
-    EDIT_USERS(listOf(VIEW_USERS)),
-    EDIT_CATALOG(listOf(EDIT_MATERIALS, EDIT_MATERIAL_TYPES, EDIT_COMPANIES)),
+    EDIT_RECIPES_PUBLIC_DATA(5, listOf(VIEW_RECIPES)),
+    EDIT_RECIPES(6, listOf(EDIT_RECIPES_PUBLIC_DATA, WRITE_FILE)),
+    EDIT_MATERIALS(7, listOf(VIEW_CATALOG, WRITE_FILE)),
+    EDIT_MATERIAL_TYPES(8, listOf(VIEW_CATALOG)),
+    EDIT_COMPANIES(9, listOf(VIEW_CATALOG)),
+    EDIT_USERS(10, listOf(VIEW_USERS)),
+    EDIT_CATALOG(11, listOf(EDIT_MATERIALS, EDIT_MATERIAL_TYPES, EDIT_COMPANIES)),
 
-    VIEW_TOUCH_UP_KITS,
-    EDIT_TOUCH_UP_KITS(listOf(VIEW_TOUCH_UP_KITS)),
+    VIEW_TOUCH_UP_KITS(12),
+    EDIT_TOUCH_UP_KITS(13, listOf(VIEW_TOUCH_UP_KITS)),
 
-    PRINT_MIXES(listOf(VIEW_RECIPES)),
-    ADD_TO_INVENTORY(listOf(VIEW_CATALOG)),
-    DEDUCT_FROM_INVENTORY(listOf(VIEW_RECIPES)),
+    PRINT_MIXES(14, listOf(VIEW_RECIPES)),
+    ADD_TO_INVENTORY(15, listOf(VIEW_CATALOG)),
+    DEDUCT_FROM_INVENTORY(16, listOf(VIEW_RECIPES)),
 
     ADMIN(
+        17,
         listOf(
             EDIT_RECIPES,
             EDIT_CATALOG,
@@ -44,58 +46,58 @@ enum class Permission(
     ),
 
     // deprecated permissions
-    VIEW_RECIPE(listOf(VIEW_RECIPES), true),
-    VIEW_MATERIAL(listOf(VIEW_CATALOG), true),
-    VIEW_MATERIAL_TYPE(listOf(VIEW_CATALOG), true),
-    VIEW_COMPANY(listOf(VIEW_CATALOG), true),
-    VIEW(listOf(VIEW_RECIPES, VIEW_CATALOG), true),
-    VIEW_EMPLOYEE(listOf(VIEW_USERS), true),
-    VIEW_EMPLOYEE_GROUP(listOf(VIEW_USERS), true),
+    VIEW_RECIPE(101, listOf(VIEW_RECIPES), true),
+    VIEW_MATERIAL(102, listOf(VIEW_CATALOG), true),
+    VIEW_MATERIAL_TYPE(103, listOf(VIEW_CATALOG), true),
+    VIEW_COMPANY(104, listOf(VIEW_CATALOG), true),
+    VIEW(105, listOf(VIEW_RECIPES, VIEW_CATALOG), true),
+    VIEW_EMPLOYEE(106, listOf(VIEW_USERS), true),
+    VIEW_EMPLOYEE_GROUP(107, listOf(VIEW_USERS), true),
 
-    EDIT_RECIPE(listOf(EDIT_RECIPES), true),
-    EDIT_MATERIAL(listOf(EDIT_MATERIALS), true),
-    EDIT_MATERIAL_TYPE(listOf(EDIT_MATERIAL_TYPES), true),
-    EDIT_COMPANY(listOf(EDIT_COMPANIES), true),
-    EDIT(listOf(EDIT_RECIPES, EDIT_CATALOG), true),
-    EDIT_EMPLOYEE(listOf(EDIT_USERS), true),
-    EDIT_EMPLOYEE_PASSWORD(listOf(EDIT_USERS), true),
-    EDIT_EMPLOYEE_GROUP(listOf(EDIT_USERS), true),
+    EDIT_RECIPE(108, listOf(EDIT_RECIPES), true),
+    EDIT_MATERIAL(109, listOf(EDIT_MATERIALS), true),
+    EDIT_MATERIAL_TYPE(110, listOf(EDIT_MATERIAL_TYPES), true),
+    EDIT_COMPANY(111, listOf(EDIT_COMPANIES), true),
+    EDIT(112, listOf(EDIT_RECIPES, EDIT_CATALOG), true),
+    EDIT_EMPLOYEE(113, listOf(EDIT_USERS), true),
+    EDIT_EMPLOYEE_PASSWORD(114, listOf(EDIT_USERS), true),
+    EDIT_EMPLOYEE_GROUP(115, listOf(EDIT_USERS), true),
 
-    REMOVE_FILE(listOf(WRITE_FILE), true),
-    GENERATE_TOUCH_UP_KIT(listOf(VIEW_TOUCH_UP_KITS), true),
+    REMOVE_FILE(116, listOf(WRITE_FILE), true),
+    GENERATE_TOUCH_UP_KIT(117, listOf(VIEW_TOUCH_UP_KITS), true),
 
-    REMOVE_RECIPES(listOf(EDIT_RECIPES, REMOVE_FILE), true),
-    REMOVE_MATERIALS(listOf(EDIT_MATERIALS, REMOVE_FILE), true),
-    REMOVE_MATERIAL_TYPES(listOf(EDIT_MATERIAL_TYPES), true),
-    REMOVE_COMPANIES(listOf(EDIT_COMPANIES), true),
-    REMOVE_USERS(listOf(EDIT_USERS), true),
-    REMOVE_CATALOG(listOf(REMOVE_MATERIALS, REMOVE_MATERIAL_TYPES, REMOVE_COMPANIES), true),
+    REMOVE_RECIPES(118, listOf(EDIT_RECIPES, REMOVE_FILE), true),
+    REMOVE_MATERIALS(119, listOf(EDIT_MATERIALS, REMOVE_FILE), true),
+    REMOVE_MATERIAL_TYPES(120, listOf(EDIT_MATERIAL_TYPES), true),
+    REMOVE_COMPANIES(121, listOf(EDIT_COMPANIES), true),
+    REMOVE_USERS(122, listOf(EDIT_USERS), true),
+    REMOVE_CATALOG(123, listOf(REMOVE_MATERIALS, REMOVE_MATERIAL_TYPES, REMOVE_COMPANIES), true),
 
-    REMOVE_RECIPE(listOf(REMOVE_RECIPES), true),
-    REMOVE_MATERIAL(listOf(REMOVE_MATERIALS), true),
-    REMOVE_MATERIAL_TYPE(listOf(REMOVE_MATERIAL_TYPES), true),
-    REMOVE_COMPANY(listOf(REMOVE_COMPANIES), true),
-    REMOVE(listOf(REMOVE_RECIPES, REMOVE_CATALOG), true),
-    REMOVE_EMPLOYEE(listOf(REMOVE_USERS), true),
-    REMOVE_EMPLOYEE_GROUP(listOf(REMOVE_USERS), true),
+    REMOVE_RECIPE(124, listOf(REMOVE_RECIPES), true),
+    REMOVE_MATERIAL(125, listOf(REMOVE_MATERIALS), true),
+    REMOVE_MATERIAL_TYPE(126, listOf(REMOVE_MATERIAL_TYPES), true),
+    REMOVE_COMPANY(127, listOf(REMOVE_COMPANIES), true),
+    REMOVE(128, listOf(REMOVE_RECIPES, REMOVE_CATALOG), true),
+    REMOVE_EMPLOYEE(129, listOf(REMOVE_USERS), true),
+    REMOVE_EMPLOYEE_GROUP(130, listOf(REMOVE_USERS), true),
 
-    SET_BROWSER_DEFAULT_GROUP(listOf(VIEW_USERS), true),
+    SET_BROWSER_DEFAULT_GROUP(131, listOf(VIEW_USERS), true),
     ;
 
     operator fun contains(permission: Permission): Boolean {
         return permission == this || impliedPermissions.any { permission in it }
     }
-}
 
-fun Permission.flat(): Iterable<Permission> {
-    return mutableSetOf(this).apply {
-        impliedPermissions.forEach {
-            addAll(it.flat())
+    fun flat(): Iterable<Permission> {
+        return mutableSetOf(this).apply {
+            impliedPermissions.forEach {
+                addAll(it.flat())
+            }
         }
     }
-}
 
-/** Converts the given [Permission] to a [GrantedAuthority]. */
-fun Permission.toAuthority(): GrantedAuthority {
-    return SimpleGrantedAuthority(name)
+    /** Converts the given permission to a [GrantedAuthority]. */
+    fun toAuthority(): GrantedAuthority {
+        return SimpleGrantedAuthority(name)
+    }
 }
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/rest/ConfigurationController.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/rest/ConfigurationController.kt
index d66b67b..c9f1e80 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/rest/ConfigurationController.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/rest/ConfigurationController.kt
@@ -4,7 +4,6 @@ import dev.fyloz.colorrecipesexplorer.logic.config.ConfigurationLogic
 import dev.fyloz.colorrecipesexplorer.model.ConfigurationBase
 import dev.fyloz.colorrecipesexplorer.model.ConfigurationDto
 import dev.fyloz.colorrecipesexplorer.model.account.Permission
-import dev.fyloz.colorrecipesexplorer.model.account.toAuthority
 import dev.fyloz.colorrecipesexplorer.restartApplication
 import org.springframework.http.MediaType
 import org.springframework.security.access.prepost.PreAuthorize
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/rest/account/GroupTokenController.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/rest/account/GroupTokenController.kt
index b2adbd1..57d3811 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/rest/account/GroupTokenController.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/rest/account/GroupTokenController.kt
@@ -20,8 +20,7 @@ import javax.validation.Valid
 @PreAuthorizeAdmin
 @Profile("!emergency")
 class GroupTokenController(
-    private val groupTokenLogic: GroupTokenLogic,
-    private val jwtLogic: JwtLogic
+    private val groupTokenLogic: GroupTokenLogic, private val jwtLogic: JwtLogic
 ) {
     @GetMapping
     fun getAll() = ok(groupTokenLogic.getAll())
@@ -29,14 +28,6 @@ class GroupTokenController(
     @GetMapping("{id}")
     fun getById(@PathVariable id: String) = ok(groupTokenLogic.getById(id))
 
-    // TODO Remove when group tokens will be fully implemented
-    @Deprecated("Only use for testing purposes")
-    @GetMapping("{id}/cookie")
-    fun addCookieForId(@PathVariable id: String, response: HttpServletResponse) {
-        val groupToken = groupTokenLogic.getById(id)
-        addGroupTokenCookie(response, groupToken)
-    }
-
     @PostMapping
     fun save(@RequestBody @Valid dto: GroupTokenSaveDto, response: HttpServletResponse) =
         with(groupTokenLogic.save(dto)) {
@@ -44,6 +35,16 @@ class GroupTokenController(
             created(Constants.ControllerPaths.GROUP_TOKEN, this, this.id)
         }
 
+    @PutMapping("{id}/enable")
+    fun enable(@PathVariable id: String) = noContent {
+        groupTokenLogic.enable(id)
+    }
+
+    @PutMapping("{id}/disable")
+    fun disable(@PathVariable id: String) = noContent {
+        groupTokenLogic.disable(id)
+    }
+
     @DeleteMapping("{id}")
     fun deleteById(@PathVariable id: String) = noContent {
         groupTokenLogic.deleteById(id)
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/GroupService.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/GroupService.kt
index 5772c5f..773deb7 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/GroupService.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/GroupService.kt
@@ -4,7 +4,6 @@ import dev.fyloz.colorrecipesexplorer.config.annotations.ServiceComponent
 import dev.fyloz.colorrecipesexplorer.dtos.account.GroupDto
 import dev.fyloz.colorrecipesexplorer.model.account.Group
 import dev.fyloz.colorrecipesexplorer.model.account.Permission
-import dev.fyloz.colorrecipesexplorer.model.account.flat
 import dev.fyloz.colorrecipesexplorer.repository.GroupRepository
 import dev.fyloz.colorrecipesexplorer.service.BaseService
 import dev.fyloz.colorrecipesexplorer.service.Service
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/GroupTokenService.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/GroupTokenService.kt
index 6cfdc3a..3cfb7c9 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/GroupTokenService.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/GroupTokenService.kt
@@ -44,5 +44,5 @@ class DefaultGroupTokenService(private val repository: GroupTokenRepository, pri
         GroupTokenDto(entity.id, entity.name, entity.isValid, groupService.toDto(entity.group))
 
     override fun toEntity(dto: GroupTokenDto) =
-        GroupToken(dto.id, dto.name, dto.isValid, groupService.toEntity(dto.group))
+        GroupToken(dto.id, dto.name, dto.enabled, groupService.toEntity(dto.group))
 }
diff --git a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/UserService.kt b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/UserService.kt
index 31c5a23..08a6c26 100644
--- a/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/UserService.kt
+++ b/src/main/kotlin/dev/fyloz/colorrecipesexplorer/service/account/UserService.kt
@@ -5,7 +5,6 @@ import dev.fyloz.colorrecipesexplorer.dtos.account.GroupDto
 import dev.fyloz.colorrecipesexplorer.dtos.account.UserDto
 import dev.fyloz.colorrecipesexplorer.model.account.Permission
 import dev.fyloz.colorrecipesexplorer.model.account.User
-import dev.fyloz.colorrecipesexplorer.model.account.flat
 import dev.fyloz.colorrecipesexplorer.repository.UserRepository
 import dev.fyloz.colorrecipesexplorer.service.BaseService
 import dev.fyloz.colorrecipesexplorer.service.Service
diff --git a/src/main/resources/application-debug.properties b/src/main/resources/application-debug.properties
index 72fc330..6555358 100644
--- a/src/main/resources/application-debug.properties
+++ b/src/main/resources/application-debug.properties
@@ -1 +1 @@
-spring.jpa.show-sql=true
\ No newline at end of file
+spring.jpa.show-sql=false