Windows File Explorer Previews Vulnerable to NTLM Hash Leakage
Windows File Explorer previews can expose NTLM password hashes, putting security at risk.
The preview pane in Windows File Explorer can be abused to expose NTLM password hashes, which attackers can reuse or try to crack offline.
Microsoft has disabled previews for downloaded files in the recent Windows update.
What is NTLM?
NT LAN Manager (NTLM) is a Microsoft authentication protocol for Windows accounts and services, largely replaced by Kerberos due to security weaknesses.
NTLM is still available for backward compatibility and can be exploited in certain conditions.
Staying Safe
Follow the guide to stay safe from NTLM hash leakage through File Explorer previews.
File Explorer previews can be exploited to execute NTLM requests, revealing local account or domain join password hashes.
Author's summary: Protect yourself from NTLM hash leakage.
More News
- Windows File Explorer Previews are Vulnerable to NTLM Hash Leakage – How to Stay Safe - Make Tech Easier
- The importance of competency in uncertain times
- Hauser headlines Noosa Triathlon as Gentle squeezed out
- Pre-school praised for 'working hard to improve' with exemplary Ofsted report
- Cambodia's new airport eclipsed by scam centers and war
- Gartner Identifies the Top Strategic Technology Trends for
- 'What a player': Adams praises Kroupi's mentality - “his ceiling is really high”
- Obituaries – Week of Oct. 27, 2025 - The Observer