diff --git a/Security/Services/AuthService.cs b/Security/Services/AuthService.cs
index 38ee706..5bb7262 100644
--- a/Security/Services/AuthService.cs
+++ b/Security/Services/AuthService.cs
@@ -29,14 +29,14 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
     private static string GetFirstAuthCacheKey(string fingerprint) => $"{fingerprint}_auth_token_first";
     private static string GetAttemptFailedCountKey(string fingerprint) => $"{fingerprint}_login_failed";
 
-    private Task StoreAuthTokenInCache(AuthToken data, CancellationToken cancellation) =>
+    private Task StoreAuthTokenInCache(AuthToken data, CancellationToken cancellationToken) =>
         cache.SetAsync(
             GetAuthCacheKey(data.Fingerprint),
             JsonSerializer.SerializeToUtf8Bytes(data),
             slidingExpiration: Lifetime,
-            cancellationToken: cancellation);
+            cancellationToken: cancellationToken);
 
-    private Task StoreFirstAuthTokenInCache(User data, RequestContextInfo requestContext, CancellationToken cancellation) =>
+    private Task StoreFirstAuthTokenInCache(User data, RequestContextInfo requestContext, CancellationToken cancellationToken) =>
         cache.SetAsync(
             GetFirstAuthCacheKey(requestContext.Fingerprint),
             JsonSerializer.SerializeToUtf8Bytes(new FirstAuthToken(requestContext)
@@ -46,14 +46,14 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
                 TwoFactorAuthenticator = data.TwoFactorAuthenticator
             }),
             slidingExpiration: LifetimeFirstAuth,
-            cancellationToken: cancellation);
+            cancellationToken: cancellationToken);
 
     private Task RevokeAccessToken(string token) =>
         revokedToken.AddTokenToRevokedAsync(token, accessTokenService.GetExpireDateTime(token));
 
-    private async Task RecordFailedLoginAttempt(string fingerprint, string userId, CancellationToken cancellation)
+    private async Task RecordFailedLoginAttempt(string fingerprint, string userId, CancellationToken cancellationToken)
     {
-        var failedLoginAttemptsCount = await cache.GetAsync<int?>(GetAttemptFailedCountKey(fingerprint), cancellation) ?? 1;
+        var failedLoginAttemptsCount = await cache.GetAsync<int?>(GetAttemptFailedCountKey(fingerprint), cancellationToken) ?? 1;
         var failedLoginCacheExpiration = TimeSpan.FromHours(1);
 
         if (failedLoginAttemptsCount > 5)
@@ -74,30 +74,30 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
             failedLoginAttemptsCount);
 
         await cache.SetAsync(GetAttemptFailedCountKey(fingerprint), failedLoginAttemptsCount + 1,
-            slidingExpiration: failedLoginCacheExpiration, cancellationToken: cancellation);
+            slidingExpiration: failedLoginCacheExpiration, cancellationToken: cancellationToken);
     }
 
-    private Task ResetFailedLoginAttempts(string fingerprint, CancellationToken cancellation) =>
-        cache.RemoveAsync(GetAttemptFailedCountKey(fingerprint), cancellation);
+    private Task ResetFailedLoginAttempts(string fingerprint, CancellationToken cancellationToken) =>
+        cache.RemoveAsync(GetAttemptFailedCountKey(fingerprint), cancellationToken);
 
     private async Task VerifyUserOrThrowError(RequestContextInfo requestContext, User user, string password, string username,
-        CancellationToken cancellation = default)
+        CancellationToken cancellationToken = default)
     {
         if ((user.Email.Equals(username, StringComparison.OrdinalIgnoreCase) ||
              user.Username.Equals(username, StringComparison.OrdinalIgnoreCase)) &&
             passwordService.VerifyPassword(password, user.Salt, user.PasswordHash))
         {
-            await ResetFailedLoginAttempts(requestContext.Fingerprint, cancellation);
+            await ResetFailedLoginAttempts(requestContext.Fingerprint, cancellationToken);
             return;
         }
 
-        await RecordFailedLoginAttempt(requestContext.Fingerprint, user.Id, cancellation);
+        await RecordFailedLoginAttempt(requestContext.Fingerprint, user.Id, cancellationToken);
 
         throw new SecurityException("Authentication failed. Please check your credentials.");
     }
 
     private async Task GenerateAuthTokensAsync(CookieOptions cookieOptions, HttpContext context,
-        RequestContextInfo requestContext, string userId, CancellationToken cancellation = default)
+        RequestContextInfo requestContext, string userId, CancellationToken cancellationToken = default)
     {
         var refreshToken = GenerateRefreshToken();
         var (token, expireIn) = GenerateAccessToken(userId);
@@ -110,7 +110,7 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
             AccessToken = token
         };
 
-        await StoreAuthTokenInCache(authToken, cancellation);
+        await StoreAuthTokenInCache(authToken, cancellationToken);
         cookieOptions.SetCookie(context, CookieNames.AccessToken, authToken.AccessToken, expireIn);
         cookieOptions.SetCookie(context, CookieNames.RefreshToken, authToken.RefreshToken, DateTime.UtcNow.Add(Lifetime));
 
@@ -121,11 +121,11 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
     }
 
     public async Task<bool> LoginAsync(CookieOptions cookieOptions, HttpContext context, TwoFactorAuthenticator authenticator, string code,
-        CancellationToken cancellation = default)
+        CancellationToken cancellationToken = default)
     {
         var requestContext = new RequestContextInfo(context, cookieOptions);
 
-        var firstTokenAuth = await cache.GetAsync<FirstAuthToken?>(GetFirstAuthCacheKey(requestContext.Fingerprint), cancellationToken: cancellation);
+        var firstTokenAuth = await cache.GetAsync<FirstAuthToken?>(GetFirstAuthCacheKey(requestContext.Fingerprint), cancellationToken: cancellationToken);
 
         if (firstTokenAuth == null || authenticator != firstTokenAuth.TwoFactorAuthenticator)
             throw new SecurityException("Session expired. Please log in again.");
@@ -147,35 +147,35 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
 
                     if (!totp.VerifyToken(code))
                     {
-                        await RecordFailedLoginAttempt(requestContext.Fingerprint, firstTokenAuth.UserId, cancellation);
+                        await RecordFailedLoginAttempt(requestContext.Fingerprint, firstTokenAuth.UserId, cancellationToken);
                         throw new SecurityException("Invalid verification code. Please try again.");
                     }
 
-                    await ResetFailedLoginAttempts(requestContext.Fingerprint, cancellation);
+                    await ResetFailedLoginAttempts(requestContext.Fingerprint, cancellationToken);
                 }
                 break;
             default:
                 throw new InvalidOperationException("Unsupported authorization method.");
         }
 
-        await GenerateAuthTokensAsync(cookieOptions, context, requestContext, firstTokenAuth.UserId, cancellation);
+        await GenerateAuthTokensAsync(cookieOptions, context, requestContext, firstTokenAuth.UserId, cancellationToken);
         return true;
     }
 
     private async Task<TwoFactorAuthenticator> LoginAsync(CookieOptions cookieOptions,
         HttpContext context,
         User user,
-        CancellationToken cancellation = default)
+        CancellationToken cancellationToken = default)
     {
         var requestContext = new RequestContextInfo(context, cookieOptions);
 
         if (user.TwoFactorAuthenticator == TwoFactorAuthenticator.None)
         {
-            await GenerateAuthTokensAsync(cookieOptions, context, requestContext, user.Id, cancellation);
+            await GenerateAuthTokensAsync(cookieOptions, context, requestContext, user.Id, cancellationToken);
             return TwoFactorAuthenticator.None;
         }
 
-        await StoreFirstAuthTokenInCache(user, requestContext, cancellation);
+        await StoreFirstAuthTokenInCache(user, requestContext, cancellationToken);
 
         return user.TwoFactorAuthenticator;
     }
@@ -201,20 +201,20 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
         User user,
         string password,
         string username,
-        CancellationToken cancellation = default)
+        CancellationToken cancellationToken = default)
     {
         var requestContext = new RequestContextInfo(context, cookieOptions);
         username = username.Trim();
-        await VerifyUserOrThrowError(requestContext, user, password, username, cancellation);
+        await VerifyUserOrThrowError(requestContext, user, password, username, cancellationToken);
 
-        return await LoginAsync(cookieOptions, context, user, cancellation);
+        return await LoginAsync(cookieOptions, context, user, cancellationToken);
     }
 
-    public async Task RefreshTokenAsync(CookieOptions cookieOptions, HttpContext context, CancellationToken cancellation = default)
+    public async Task RefreshTokenAsync(CookieOptions cookieOptions, HttpContext context, CancellationToken cancellationToken = default)
     {
         const string defaultMessageError = "The session time has expired";
         var requestContext = new RequestContextInfo(context, cookieOptions);
-        var authToken = await cache.GetAsync<AuthToken>(GetAuthCacheKey(requestContext.Fingerprint), cancellation) ??
+        var authToken = await cache.GetAsync<AuthToken>(GetAuthCacheKey(requestContext.Fingerprint), cancellationToken) ??
                         throw new SecurityException(defaultMessageError);
 
         if (authToken.RefreshToken != requestContext.RefreshToken ||
@@ -222,7 +222,7 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
             authToken.Ip != requestContext.Ip)
         {
             await RevokeAccessToken(authToken.AccessToken);
-            await cache.RemoveAsync(GetAuthCacheKey(requestContext.Fingerprint), cancellation);
+            await cache.RemoveAsync(GetAuthCacheKey(requestContext.Fingerprint), cancellationToken);
             cookieOptions.DropCookie(context, CookieNames.AccessToken);
             cookieOptions.DropCookie(context, CookieNames.RefreshToken);
 
@@ -274,24 +274,24 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
         authToken.AccessToken = token;
         authToken.RefreshToken = newRefreshToken;
 
-        await StoreAuthTokenInCache(authToken, cancellation);
+        await StoreAuthTokenInCache(authToken, cancellationToken);
         cookieOptions.SetCookie(context, CookieNames.AccessToken, authToken.AccessToken, expireIn);
         cookieOptions.SetCookie(context, CookieNames.RefreshToken, authToken.RefreshToken, DateTime.UtcNow.Add(Lifetime));
     }
 
-    public async Task LogoutAsync(CookieOptions cookieOptions, HttpContext context, CancellationToken cancellation = default)
+    public async Task LogoutAsync(CookieOptions cookieOptions, HttpContext context, CancellationToken cancellationToken = default)
     {
         var requestContext = new RequestContextInfo(context, cookieOptions);
 
         cookieOptions.DropCookie(context, CookieNames.AccessToken);
         cookieOptions.DropCookie(context, CookieNames.RefreshToken);
 
-        var authTokenStruct = await cache.GetAsync<AuthToken>(GetAuthCacheKey(requestContext.Fingerprint), cancellation);
+        var authTokenStruct = await cache.GetAsync<AuthToken>(GetAuthCacheKey(requestContext.Fingerprint), cancellationToken);
 
         if (authTokenStruct == null)
             return;
 
         await RevokeAccessToken(authTokenStruct.AccessToken);
-        await cache.RemoveAsync(requestContext.Fingerprint, cancellation);
+        await cache.RemoveAsync(requestContext.Fingerprint, cancellationToken);
     }
 }
\ No newline at end of file
diff --git a/Security/Services/OAuthService.cs b/Security/Services/OAuthService.cs
index 6a2389b..ea5a984 100644
--- a/Security/Services/OAuthService.cs
+++ b/Security/Services/OAuthService.cs
@@ -58,7 +58,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
     };
 
     private static async Task<OAuthTokenResponse?> ExchangeCodeForTokensAsync(string requestUri, string redirectUrl, string code,
-        string clientId, string secret, CancellationToken cancellation)
+        string clientId, string secret, CancellationToken cancellationToken)
     {
         var tokenRequest = new HttpRequestMessage(HttpMethod.Post, requestUri)
         {
@@ -75,8 +75,8 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
         using var httpClient = new HttpClient();
         httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("MireaSchedule/1.0 (Winsomnia)");
 
-        var response = await httpClient.SendAsync(tokenRequest, cancellation);
-        var data = await response.Content.ReadAsStringAsync(cancellation);
+        var response = await httpClient.SendAsync(tokenRequest, cancellationToken);
+        var data = await response.Content.ReadAsStringAsync(cancellationToken);
 
         if (!response.IsSuccessStatusCode)
             throw new HttpRequestException(data);
@@ -85,7 +85,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
     }
 
     private static async Task<OAuthUser?> GetUserProfileAsync(string requestUri, string authHeader, string accessToken, OAuthProvider provider,
-        CancellationToken cancellation)
+        CancellationToken cancellationToken)
     {
         var request = new HttpRequestMessage(HttpMethod.Get, requestUri);
 
@@ -97,8 +97,8 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
         using var httpClient = new HttpClient();
         httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("MireaSchedule/1.0 (Winsomnia)");
 
-        var response = await httpClient.SendAsync(request, cancellation);
-        var data = await response.Content.ReadAsStringAsync(cancellation);
+        var response = await httpClient.SendAsync(request, cancellationToken);
+        var data = await response.Content.ReadAsStringAsync(cancellationToken);
 
         if (!response.IsSuccessStatusCode)
             throw new HttpRequestException(data);
@@ -167,12 +167,12 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
         }
     }
 
-    private Task StoreOAuthUserInCache(string key, OAuthUserExtension data, CancellationToken cancellation) =>
+    private Task StoreOAuthUserInCache(string key, OAuthUserExtension data, CancellationToken cancellationToken) =>
         cache.SetAsync(
             key,
             JsonSerializer.SerializeToUtf8Bytes(data),
             absoluteExpirationRelativeToNow: TimeSpan.FromMinutes(15),
-            cancellationToken: cancellation);
+            cancellationToken: cancellationToken);
 
 
     public Uri GetProviderRedirect(CookieOptions cookieOptions, HttpContext context, string redirectUri,
@@ -209,7 +209,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
         [.. providers.Select(x => (x.Key, new Uri(redirectUri.TrimEnd('/') + "/?provider=" + (int)x.Key)))];
 
     public async Task<LoginOAuth> LoginOAuth(CookieOptions cookieOptions, HttpContext context,
-        string redirectUrl, string code, string state, CancellationToken cancellation = default)
+        string redirectUrl, string code, string state, CancellationToken cancellationToken = default)
     {
         var result = new LoginOAuth()
         {
@@ -226,7 +226,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
             {
                 Message = result.ErrorMessage,
                 Provider = null
-            }, cancellation);
+            }, cancellationToken);
 
             return result;
         }
@@ -251,7 +251,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
             result.ErrorMessage = "Invalid authorization request. Please try again later.";
             cacheData.Message = result.ErrorMessage;
 
-            await StoreOAuthUserInCache(result.Token, cacheData, cancellation);
+            await StoreOAuthUserInCache(result.Token, cacheData, cancellationToken);
 
             return result;
         }
@@ -271,7 +271,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
                 checksum
             );
 
-            await StoreOAuthUserInCache(result.Token, cacheData, cancellation);
+            await StoreOAuthUserInCache(result.Token, cacheData, cancellationToken);
 
             return result;
         }
@@ -280,7 +280,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
         try
         {
             accessToken = await ExchangeCodeForTokensAsync(currentProviderStruct.TokenUrl, redirectUrl, code, providerInfo.ClientId,
-                providerInfo.Secret, cancellation);
+                providerInfo.Secret, cancellationToken);
         }
         catch (Exception ex)
         {
@@ -288,7 +288,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
                 payload.Provider,
                 checksum);
 
-            await StoreOAuthUserInCache(result.Token, cacheData, cancellation);
+            await StoreOAuthUserInCache(result.Token, cacheData, cancellationToken);
 
             return result;
         }
@@ -300,14 +300,14 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
         try
         {
             user = await GetUserProfileAsync(currentProviderStruct.UserInfoUrl, currentProviderStruct.AuthHeader, accessToken.AccessToken,
-                payload.Provider, cancellation);
+                payload.Provider, cancellationToken);
         }
         catch (Exception ex)
         {
             logger.LogWarning(ex, "Failed to retrieve user information from provider {Provider}",
                 payload.Provider);
 
-            await StoreOAuthUserInCache(result.Token, cacheData, cancellation);
+            await StoreOAuthUserInCache(result.Token, cacheData, cancellationToken);
 
             return result;
         }
@@ -323,24 +323,24 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
             IsSuccess = true,
             User = user,
             Provider = payload.Provider
-        }, cancellation);
+        }, cancellationToken);
 
         return result;
     }
 
     public async Task<(OAuthUser? User, string? Message, bool IsSuccess, OAuthProvider? Provider)>
-        GetOAuthUser(CookieOptions cookieOptions, HttpContext context, string token, CancellationToken cancellation = default)
+        GetOAuthUser(CookieOptions cookieOptions, HttpContext context, string token, CancellationToken cancellationToken = default)
     {
         var requestInfo = new RequestContextInfo(context, cookieOptions);
 
-        var result = await cache.GetAsync<OAuthUserExtension>(token, cancellation);
+        var result = await cache.GetAsync<OAuthUserExtension>(token, cancellationToken);
         var tokenFailedKey = $"{requestInfo.Fingerprint}_oauth_token_failed";
 
         if (result == null)
         {
             var failedTokenAttemptsCount = await cache.GetAsync<int?>(
                 tokenFailedKey,
-                cancellation) ?? 1;
+                cancellationToken) ?? 1;
 
             var failedTokenCacheExpiration = TimeSpan.FromHours(1);
 
@@ -364,7 +364,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
             await cache.SetAsync(tokenFailedKey,
                 failedTokenAttemptsCount + 1,
                 slidingExpiration: failedTokenCacheExpiration,
-                cancellationToken: cancellation);
+                cancellationToken: cancellationToken);
 
             return (null, "Invalid or expired token.", false, null);
         }
@@ -406,18 +406,18 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
                 result.Ip,
                 requestInfo.Ip);
 
-            await cache.RemoveAsync(token, cancellation);
+            await cache.RemoveAsync(token, cancellationToken);
 
             return (null, "Invalid or expired token.", false, null);
         }
 
-        await cache.RemoveAsync(tokenFailedKey, cancellation);
+        await cache.RemoveAsync(tokenFailedKey, cancellationToken);
 
         result.Ip = requestInfo.Ip;
         result.UserAgent = requestInfo.UserAgent;
         result.Fingerprint = requestInfo.Fingerprint;
 
-        await StoreOAuthUserInCache(token, result, cancellation);
+        await StoreOAuthUserInCache(token, result, cancellationToken);
 
         return (result.User, result.Message, result.IsSuccess, result.Provider);
     }