Never make access control decisions on the back of untrusted data. Either keep the session state on the server-side, or ensure cookies are tamper-proof by using a digital signature or encryption
Headers ▼ General Remote Address: 121.232.112.200:443 Request Method: GET Status Code: 200 OK ▶ Request Headers ▼ Response Headers Set-Cookie: session_id=142983010 Set-Cookie: user_id=1