bbg game ⭐️Multi-layered security architecture: brute-force protection (account lockout após 5 failed attempts, exponential backoff: 5min, 15min, 1hr, 24hr), IP whitelisting optional (restrict logins para approved IPs), device recognition (new device triggers email notification com approval link), session management (concurrent session limits, remote logout capability para all active sessions), e activity monitoring (login history dashboard showing timestamp, IP, device, location para cada