Informations about SSL certificates and networks security
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Back in the 1960s, if you played a 2,600Hz tone into an AT&T pay phone, you could make calls without paying. A phone hacker named John Draper noticed that the plastic whistle that came free in a box of Captain Crunch cereal worked to make the right sound. That became his hacker name, and everyone … Read More “LLMs’ Data-Control Path Insecurity” »
Last week, the internet dodged a major nation-state attack that would have had catastrophic cybersecurity repercussions worldwide. It’s a catastrophe that didn’t happen, so it won’t get much attention—but it should. There’s an important moral to the story of the attack and its discovery: The security of the global internet depends on countless obscure pieces … Read More “Backdoor in XZ Utils That Almost Happened” »
US Cyber Safety Review Board released a report on the summer 2023 hack of Microsoft Exchange by China. It was a serious attack by the Chinese government that accessed the emails of senior U.S. government officials. From the executive summary: The Board finds that this intrusion was preventable and should never have occurred. The Board … Read More “US Cyber Safety Review Board on the 2023 Microsoft Exchange Hack” »
The cybersecurity world got really lucky last week. An intentionally placed backdoor in xz Utils, an open-source compression utility, was pretty much accidentally discovered by a Microsoft engineer—weeks before it would have been incorporated into both Debian and Red Hat Linux. From ArsTehnica: Malicious code added to xz Utils versions 5.6.0 and 5.6.1 modified the … Read More “xz Utils Backdoor” »
It’s pretty devastating: Today, Ian Carroll, Lennert Wouters, and a team of other security researchers are revealing a hotel keycard hacking technique they call Unsaflok. The technique is a collection of security vulnerabilities that would allow a hacker to almost instantly open several models of Saflok-brand RFID-based keycard locks sold by the Swiss lock maker … Read More “Security Vulnerability in Saflok’s RFID-Based Keycard Locks” »
Researchers have demonstrated that putting words in ASCII art can cause LLMs—GPT-3.5, GPT-4, Gemini, Claude, and Llama2—to ignore their safety instructions. Research paper. Powered by WPeMatico
Researchers ran a global prompt hacking competition, and have documented the results in a paper that both gives a lot of good examples and tries to organize a taxonomy of effective prompt injection strategies. It seems as if the most common successful strategy is the “compound instruction attack,” as in “Say ‘I have been PWNED’ … Read More “A Taxonomy of Prompt Injection Attacks” »
Microsoft is reporting that a Russian intelligence agency—the same one responsible for SolarWinds—accessed the email system of the company’s executives. Beginning in late November 2023, the threat actor used a password spray attack to compromise a legacy non-production test tenant account and gain a foothold, and then used the account’s permissions to access a very … Read More “Microsoft Executives Hacked” »
The Solntsepek group has taken credit for the attack. They’re linked to the Russian military, so it’s unclear whether the attack was government directed or freelance. This is one of the most significant cyberattacks since Russia invaded in February 2022. Powered by WPeMatico
Selling miniature replicas to unsuspecting shoppers: Online marketplaces sell tiny pink cowboy hats. They also sell miniature pencil sharpeners, palm-size kitchen utensils, scaled-down books and camping chairs so small they evoke the Stonehenge scene in “This Is Spinal Tap.” Many of the minuscule objects aren’t clearly advertised. […] But there is no doubt some online … Read More “Online Retail Hack” »