There’s no way to prevent a cyberattack, but there are ways to prepare for a cyber attack. An obvious first step is running updated and (fully) patched software; a layered, defense-in-depth architecture of security tools; and schooling end users on how to avoid falling for phishing or other attack lures. Security also now encompasses incident response — in the aftermath of an attack, what to do, who to contact, and how to report a breach publicly. That requires a written plan, tabletop exercises, executive-level buy-in, and more.”]
Source: https://www.darkreading.com/attacks-breaches/twitter-chat-how-to-prepare-for-a-cyberattack