Anti Virus Software

None !!

Effective defenses against malware and other threats

Are there any AntiVirus, Disk Cleaner, Optimizers, Defrag, VPNs etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal operation of the OS. The Built-in Security of Big Sur is all that is required.

Anti-virus apps are a cyber crime. Not needed and not recommended.

Effective defenses against malware and ot… - Apple Community

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

You're welcome.