Prevention, not cure
The easiest, most obvious way to prevent disaster is… have we mentioned backing up your data? Do it. Schedule it. Now!
Buy tough, strong, robust cases that will provide proper protection for everything you carry around with you. For your Mac, Brenthaven’s sleeves are made from military-grade nylon that won’t tear and will protect your MacBook from bumps and drops. OtterBox make iPhone and iPad cases that’ll save your device if you knock it off a desk or drop it in the shower (hey, stranger things have happened).
If you have contents insurance, make sure your Mac, iPhone, and iPad are covered while you’re away from home for both theft and accidental damage. If not, consider separate insurance. If you have critical data on a MacBook that you don’t want a thief to access, use an app such as Hider to encrypt it, or encrypt the whole disk with FileVault.
We’ve already mentioned Avast!, but Safari itself will warn you of phishing sites. Little Snitch monitors outgoing communications so you can see which apps are sending data to remote servers – if that sort of thing is important to you.
If you have a Mac with an internal ATA, SATA, or external SATA hard drive, SMARTReporter can monitor the health of your drive and alert you if it’s about to fail.
To keep passwords, credit card numbers and other sensitive data safe while making it easily accessible, use a password manager like 1Password. That way you’ll be able to use complex passwords for online accounts without having to write them down.