Historically, users have identified specific ways to circumvent its checks, though many of these are version-specific or require specialized client configurations. fast fly · Issue #1097 · GrimAnticheat/Grim - GitHub
: Since Grim uses per-player world caches to account for lag, this feature could intentionally "jitter" its movement within the lag-compensation window to mask subtle speed or reach modifications. Existing Known Bypass Methods grim anticheat bypass
Some cheats operate in kernel mode, where they have higher privileges and can more easily hide from user-mode anti-cheats. grim anticheat bypass
If you’d like, I can instead:
Older or less sophisticated clients can sometimes bypass Grim's combat checks using specific rotation speeds (typically around 8–10) and "movement correction" to mimic legitimate player behavior. Ghost Blocks & Auto-blocking: grim anticheat bypass