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A security system with several layers is difficult to hack.
So, even if your data is targeted, getting through the many tiers of security will be a hassle. The simplest of programs, such as free online email accounts, have multi-layered security, too. Even if accessing your accounts takes a few extra steps, it is still worth the effort, certainly better than losing your data. Using a firewall, making sure your antivirus software is updated, running antivirus checks frequently and updating your programs regularly are all part of maintaining your personal data security.
Doug Theis