The Privacy BlogPrivacy, Security, Cryptography, and Anonymity

CAT | Security Breaches


Man spoof Ashley Madison

There is a lot of Schadenfreude going around about the Ashley Madison website hack. People are often treating it as more of a joke than a serious incident.

For those of you who have been under a rock, Ashley Madison is a dating site for married people who want to have affairs. Their tag line is even “Life is short. Have an affair” so they are very not subtle about it.





Hola VPN Service Security Train Wreck


Hola logo unhappy

The Hola peer to peer VPN service suffered a number of very damaging security revelations today. Hola claims that there are (or were) about 45 million active users of the service. (more…)

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Dark Hotel hall

Kaspersky recently announced the discovery of a new Advanced Persistent Threat (APT) that they are calling DarkHotel. This is in the fine tradition of giving all newly discovered hackers or vulnerabilities clever and evil sounding names. In this case they have found something quite interesting.

For the last 7 years a group has been systematically targeting executives and government officials staying at high end hotels. They hack their computers and grab their files, sniff their keyboards, and install virus that can then spread within the victim’s organization. (more…)

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sudo make me a sandwich

Security researcher Emil Kvarnhammar of TrueSec announced the discovery of a new vulnerability in Mac OS X from 10.8.5 though the current 10.10.

The attack is against a unix utility called “sudo” which allows commands to run as the “root” user (which has absolute power on the system). Normally a user with admin privileges needs to type in their password and approve the running of these tasks, but this attack bypasses the user authentication step.

They have not released details on the vulnerability to give Apple time to issue a fix. In the mean time, it looks like you can protect yourself by making your your normal account is not an admin account. (more…)

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Two new attacks on Tor


Tor webpage

Two new attacks on Tor were recently announced.

The first involves using an exit node to automatically modify software patches to include malware. This one is being seen in the wild already. (more…)

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