Introducing this type of multilayered complexity doesn’t provide 100 percent protection against attacks, but it does reduce the chances of a successful attack.
Prepare for the Worst, Plan for the Best
If everything else fails, you must still be ready for the worst. Planning for failure will help minimize its actual consequences should it occur. Having backup storage or fail-safe systems in place beforehand allows the IT department to constantly monitor security measures and react quickly to a breach.
If the breach is not serious, the business or organization can keep operating on backup while the problem is addressed. IT security is as much about limiting the damage from breaches as it is about preventing and mitigating it.
Backup, Backup, Backup
Ideally, a security system will never be breached, but when a security breach does take place, the event should be recorded. In fact, IT staff often record as much as they can, even when a breach isn't happening.
Sometimes the causes of breaches aren’t apparent after the fact, so it's important to have data to track backwards. Data from breaches will
eventually help to improve the system and prevent future attacks – even if it doesn’t initially make sense.
Run Frequent Tests
Hackers are constantly improving their craft, which means information security must evolve to keep up. IT professionals run tests, conduct risk assessments, reread the disaster recovery plan, check the business continuity plan in case of attack, and then do it all over again. (Read also: 5 Reasons You Should Be Thankful For Hackers.)
The Takeaway
IT security is a challenging job that requires attention to detail at the same time as it demands a higher-level awareness. However, like many tasks that seem complex at first glance, IT security can be broken down in to basic steps that can simplify the process. That’s not to say it makes things easy, but it does keep IT professionals on their toes.
Claudio Buttice Contributor Bio - Techopedia