An air-gap backup is a cybersecurity and disaster recovery strategy where critical data is copied and stored on media or systems that are completely isolated from any network, including the internet. This “air gap” ensures that the backup data is not accessible online, providing a strong defense against cyber threats like ransomware attacks.

Isolation is the highlighted attribute for an air-gap backup. 

Further, the retention scheme and the time-to-restore the backup are also critical factors.

“Something you know, something you have, and something you are.”

Multi-factor authentication requires the computer user two or more methods of verifying themselves in order to access computer, network, or cloud computing environments.

Tell Me More! 
MFA methods includes Microsoft Authenticator, a voice phone call, hardware token like a Yubikey, PIN, email, or SMS.  Some of these methods are less secure and no longer should be used.

Answer: NO

Why?
Traditional security models assume everything inside the network is trustworthy, ZTNA operates on the principle of “never trust, always verify”

Zero Trust Network Access (ZTNA) is a security framework that ensures secure access to applications and data by verifying every user and device before granting access, regardless of their location.  

A virtual private network (VPN) is akin to “trust but verify”.  Once authenticated, access to everything is permitted.

Antivirus used to be adequate. Nowadays, you need an enhanced version of antivirus software to help protect against more sophisticated cybersecurity threats.

Want to Know More?
Antivirus detects and removes known malware using signature-based detection.  It will not be able to detect new or unknown threats.  Consider your typical antivirus software as legacy or obsolete.

Endpoint Detection and Response (EDR) is the modern anti-malware solution.  In addition to signature-based detection, EDR can detect suspicious behaviors and unknown threats using behavioral analysis.  The drawback with traditional EDR may require more processing power of your endpoint s being protected.

For organizations needing a more sophisticated solution to meet compliance, Extended Detection and Response (XDR) offers a holistic security solution. It integrates multiple data sources, providing extensive threat detection and response across your entire IT environment.