Opsec Cyber Cryptography Archives - Page 5 of 17

Category Archives: Cryptography

DoppelPaymer ransomware supsects arrested in Germany and Ukraine

March 7 2023 By Syndicator in Cryptography, Cybercrime, Law & order, Ransomware, Security

Devices seized, suspects interrogated and arrested, allegedly connected to devastating cyberattack on University Hospital in Düsseldorf.

S3 Ep124: When so-called security apps go rogue [Audio + Text]

March 2 2023 By Paul Ducklin in Apple, Cryptography, Cybercrime, Google, Law & order, Podcast, Ransomware, Security

Rogue software packages. Rogue "sysadmins". Rogue keyloggers. Rogue authenticators. Rogue ROGUES!

Side-Channel Attack against CRYSTALS-Kyber

February 28 2023 By Bruce Schneier in Cryptography, machine learning, Security

CRYSTALS-Kyber is one of the public-key algorithms currently recommended by NIST as part of its post-quantum cryptography standardization process.

Researchers have just published a side-channel attack—using...

Beware rogue 2FA apps in App Store and Google Play – don’t get hacked!

February 27 2023 By Paul Ducklin in Cryptography, Malware, Security

Even in Apple's and Google's "walled gardens", there are plenty of 2FA apps that are either dangerously incompetent, or unrepentantly malicious. (Or perhaps both.)

Serious Security: GnuTLS follows OpenSSL, fixes timing attack bug

February 14 2023 By Paul Ducklin in Cryptography, Security

Conditional code considered cryptographically counterproductive.

Mary Queen of Scots Letters Decrypted

February 9 2023 By Bruce Schneier in Cryptography, Security

This is a neat piece of historical research.

The team of computer scientist George Lasry, pianist Norbert Biermann and astrophysicist Satoshi Tomokiyo—all keen cryptographers—initially thought the batch...
Read more

OpenSSL fixes High Severity data-stealing bug – patch now!

February 8 2023 By Paul Ducklin in Cryptography, Security, Vulnerability

7 memory mismanagements and a timing attack. We explain all the jargon bug terminology in plain English...

Tracers in the Dark: The Global Hunt for the Crime Lords of Crypto

February 7 2023 By Paul Ducklin in Cryptography, Cybercrime, Law & order, Podcast, Security

Hear renowned cybersecurity author Andy Greenberg's thoughtful commentary about the "war on crypto" as we talk to him about his new book...

Attacking Machine Learning Systems

February 6 2023 By Bruce Schneier in Cryptography, cybersecurity, machine learning, Security, vulnerabilities

The field of machine learning (ML) security—and corresponding adversarial ML—is rapidly advancing as researchers develop sophisticated techniques to perturb, disrupt, or steal the ML model or data. It’s a...