Hello a Quick Emergency Update that fixes the discovered Unity security vulnerability, This Update Adds Nothing New If you have the last quicklook installed DELETE, REMOVE, SHRED IT TO LITTLE BITS. and Install the Patched Version B25_41a

You can learn more about it by reading this article https://discussions.unity.com/t/unity-platform-protection-take-immediate-action-to-protect-your-games-and-apps/1688031

• dave