mclim wrote:
According to https://www.zdnet.com/article/how-bad-is-the-m1-macs-ssd-failure-problem/
To keep malware off Apple Silicon macOS (& iOS), Apple is locking down the macOS boot process. The M1 boot process requires a working SSD to boot macOS. The SSD contains a Signed System Volume that is cryptographically sealed by Apple. No seal, no bootable System.
So if the internal drive on your M1 Mac fails completely, even an external bootable drive won't boot. Yep, your Mac is bricked.
It seems you are taking away your own interpretation of the article you reference.
The more salient point that I read from the article:
"it may be that malware is a bigger threat to your data than a complete SSD failure is."
If the SSD fails on any Mac from the last 4 or 5 years the Machine is bricked— all SSD are soldered to the logic-board—and will require replacement either under warranty, extended warranty or out of pocket.
It is still no excuse to not backup you data, and a bootable clone is certainly a viable option.
3-2-1 Backup Strategy: three copies of your data, two different methods, and one offsite.