I have a question regarding ransomware or other similar rogue viruses. We utilize MS 365 when it comes to backing up our data on each computer using OneDrive. However, in the event of a rogue attack, we would be able to restore all the user files up to 30 days. Is that typically enough of a timeframe to clear most of the issues or is more than 30 days necessary? Might there have been a resident malware present within the system beyond 30 days? What do you know in regards to actual real life scenarios?
Also, once a restore is done, I imagine is should be sanitized...so would malwarebytes or a good antivirus pickup anything resident in the system?