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Security & Privacy

The most popular blog posts about security & privacy on Hacker News. 8,776 posts.

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8491

De-anonymizing Apple UDIDs with OpenFeint

Every iPhone, iPad and iPod touch has an associated Unique Device Identifier (UDID). You can think of the UDID as a serial number burned into the device - one that can't be removed or changed 1 . This number is exposed to app developers through an API, without requiring the device owner's permission or knowledge.

8492

Beginners Guide to 0day/CVE AppSec Research

A while ago I took up the challenge to get Offensive Security Web Expert (OSWE) certified. During this journey I learned many awesome things. The most important lesson learned was that with source code and a debugger, I could find vulnerabilities exponentially faster than by using traditional Blackbox/Bug-Bounty…

8495

Keyringless GnuPG

My favorite music player is Audacious . It follows the Winamp Classic tradition of not trying to manage my music library. Instead it waits patiently for me to throw files and directories at it. These selections will be informally grouped into transient, disposable playlists of whatever I fancy that day.

8501

The Asian domain-name extortion scam

We are a leading internet solutions organization in Asia, and we have something urgent to confirm with you. Yesterday we received a formal application from a company called ” Varmer Investment Co., Ltd “. They were trying to apply for ” instapaper ” as Brand Name and following Domain Names through our organization:

8503

TextSecure: Forward secrecy for asynchronous messages

Traditionally, asynchronous messaging systems such as email have relied on protocols like PGP or S/MIME for cryptographic security. These protocols work the way most people are familiar with: one who wishes to receive encrypted email advertises a public key, and those wishing to send encrypted e...

8513

The New Normal: 200-400 Gbps DDoS Attacks

Over the past four years, KrebsOnSecurity has been targeted by countless denial-of-service attacks intended to knock it offline. Earlier this week, KrebsOnSecurity was hit by easily the most massive and intense such attack yet — a nearly 200 Gbps assault leveraging a simple attack method that industry experts say is…

8515

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…

8517

Deceiving Users with the Facebook Like Button

Facebook just launched a super-easy widget called "The Facebook Like Button". Website owners can add a simple iframe snippet to their html, enabling a nice "Like" button with a count of other people's "Likes" and a list of faces of people if any of them are your friends. The advantage of this new tool is that you…