Blogs / Personal blogs

Bruce Schneier

schneier.com

In both a 2021 essay and my 2022 book, A Hacker’s Mind , I talk about AIs finding vulnerabilities and exploits—hacking—the legal system.

Popular posts
164
Total points
31,494
HN comments
13,555
Rank
#16 personal

Visit schneier.com → RSS feedOn Hacker News Jul 2008 – Sep 2026

Security & Privacy 152Society, Policy & Culture 88Crypto & Blockchain 10Life, Learning & Writing 9Tools & Productivity 8Math & Algorithms 7

1

I hate password rules

The other day, I was creating a new account on the web. It was financial in nature, which means it gets one of my most secure passwords. I used Password Safe to generate this 16-character alphanumeric password: :s^Twd.J;3hzg=Q~ Which was rejected by the site, because it didn’t meet its password security rules. It took…

2

SecureDrop

SecureDrop is an open-source whistleblower support system, originally written by Aaron Swartz and now run by the Freedom of the Press Foundation. The first instance of this system was named StrongBox and is being run by The New Yorker. To further add to the naming confusion, Aaron Swartz called the system DeadDrop…

3

Master Keys

Earlier this month, a retired New York City locksmith was selling a set of “master keys” on eBay: Three of the five are standard issue for members of the FDNY, and the set had a metal dog tag that was embossed with an FDNY lieutenant’s shield number, 6896. The keys include the all-purpose “1620,” a master firefighter…

4

Frequent Password Changes Is a Bad Security Idea

I’ve been saying for years that it’s bad security advice, that it encourages poor passwords. Lorrie Cranor, now the FTC’s chief technologist, agrees: By studying the data, the researchers identified common techniques account holders used when they were required to change passwords. A password like “tarheels#1”, for…

6

Cell Phone OPSEC for Border Crossings

I have heard stories of more aggressive interrogation of electronic devices at US border crossings. I know a lot about securing computers, but very little about securing phones. Are there easy ways to delete data—files, photos, etc.—on phones so it can’t be recovered? Does resetting a phone to factory defaults erase…

7

Changing Passwords

How often should you change your password? I get asked that question a lot, usually by people annoyed at their employer’s or bank’s password expiration policy: people who finally memorized their current password and are realizing they’ll have to write down their new password. How could that possibly be more secure…