Two things to say:
One, be sure you are backing up all of your data on a regular basis. I use SOS backup, but there are many other ways to do this.
Two, be careful out there and use extreme caution when opening files or attachments from unknown sources.
From Kim Komando's web site today:
"Warfare is a constant back and forth between offense and defense, and
the same rules hold true for cyberwarfare. A hacker finds a weakness in
a program, the developer patches the weakness, the hacker finds another
weakness, the developer patches the weakness, and so on.
that formula got flipped in the case of the TeslaCrypt ransomware. It
was a major problem last year, but then security companies figured out
its weakness and were able to decrypt and recover people's files without
paying hackers. Unfortunately, the hackers behind TeslaCrypt learned
their lesson and it's back and stronger than before.
original version of TeslaCrypt, the ransomware stored the key for
decrypting the files on the victim's computer. That let security
companies find it and use it to unlock the files. The new version of
TeslaCrypt, version 3.01, moves the key to the hacker's server and
deletes it off the victim's computer. That means there's no way for the
victim to get around the encryption.
If you get TeslaCrypt on your
computer, you'll either have to pay to get your file back or wipe the
computer and start over. You better hope you backed up your files.
Although, the FBI is warning that new versions of ransomware are
starting to seek out and destroy local backups, so make sure you have an
off-site backup as well.
Unfortunately, ransomware threats are growing at a fast rate,
so you're increasingly likely to encounter this threat. Your best bet
is to keep it an arm's length with strong security software.
We recommend our sponsor Kaspersky Lab.
Its award-winning software is trusted by 400 million people and 270,000
business worldwide. It also has 3,000 security experts on staff working
to identify and defeat the biggest threats to your security.
Get Kaspersky Total Security today and save 50% just for being a Komando reader. A single license of Kaspersky Total Security covers up to five gadgets, including Windows, Mac, Android and iOS.
Strong security is one critical part of staying safe from ransomware. Learn some other things you'll want to do to stay safe."