Not what you are looking for? Ask the experts!
Norton Security 8.5.7 Broke Time Machine Backup
I just updated to Norton Security 8.5.7 on four different Macs (iMac, MacBook Pro, MacBook Air and MacBook) all running Catalina 15.5. Immediately following the update on each Mac, Time Machine backups for those Macs started failing. In most cases they fail anywhere from 75-90% through the backup with a message that the files cannot be copied; subsequent verifications of the backups indicate that the backups are corrupted. The Macs are on a mix of wireless and wired connections. This happens across two separate (redundant) Time Capsules, both connected to my network via Ethernet. I tried resetting one Time Capsule, even going so far as erasing and zeroing out the disk. However, the problem persisted. I finally got backups to work by disabling all scanning, protection and firewall options in Norton Security, and re-enabling them after a successful backup. I also have switch Time Machine from automatic backups to manual backups, so I can disable Norton Security before backing up. Is anyone else encountering similar issues? Thanks.