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It’s one thing to know generally that your systems are under fire from hackers around the world and malicious users around the office; it’s another to understand specific potential attacks against your systems. This section discusses some well-known attacks but is by no means a comprehensive listing.

Many security vulnerabilities aren’t critical by themselves, but exploiting several vulnerabilities at the same time can take its toll on a system or network environment. A default Windows operating system (OS) configuration, a weak SQL Server administrator password, or a mission-critical workstation running on a wireless network may not be a major security concern by itself. But someone who exploits all three of these vulnerabilities simultaneously could enable unauthorized remote access and disclose sensitive information (among other things).

Complexity is the enemy of security.

Vulnerabilities and attacks have grown enormously in recent years because of virtualization, cloud computing, and even social media. These three things alone add immeasurable complexity to your environment. On top of that, with the new ways of the world and so many people working from home, the complexities have grown exponentially.