Defense in Depth (DiD)

In cybersecurity, DiD is a layered security strategy that uses multiple controls to impede attackers. Think of it as building several lines of defense around a castle, like the concentric walls, moats, and watchtowers of a medieval fortress.

The key idea is that if one layer is breached, the others slow down or stop the attacker entirely. This redundancy makes it significantly harder to infiltrate your system and steal the data.

Here's how DiD translates into the digital world:

• Physical Security: This layer controls physical access to servers and equipment.
• Network Security: Firewalls, intrusion detection systems (IDS), and access control lists (ACLs) filter traffic and prevent unauthorized access.
• Device Security: Antivirus, anti-malware, and application whitelisting software secure individual devices.
• Data Security: Encryption for data at rest and in transit adds another layer of protection
• User Awareness & Training: Educating users about phishing scams and secure practices.     Remember, DiD is all about creating multiple hurdles for attackers. Even if they bypass one layer, the others can buy you time to detect and respond to the threat. By employing DiD, you make it much harder for attackers to succeed, keeping your data safe and sound.