09.04.2024 - Le service financier d’une entreprise reçoit de son patron une demande de paiement soi-disant urgente. Le CEO explique que si le responsable financier n’effectue pas le paiement dans les plus brefs délais, cela aura de graves conséquences pour l’entreprise, car une commande importante sera perdue. Ensuite, le chef n’est étrangement plus joignable pour répondre à d’autres questions. Tel est le scénario typique d’une fraude au CEO. La plupart du temps, ces attaques ne sont pas très sophistiquées et sont faciles à détecter. L’intelligence artificielle et le deep fake ne s’arrêtent toutefois pas à cette méthode d’escroquerie plutôt simple, comme le montre un exemple récent signalé à l’OFCS.
Every version of the PuTTY tools from 0.68 to 0.80 inclusive has a critical vulnerability in the code that generates signatures from ECDSA private keys which use the NIST P521 curve. (PuTTY, or Pageant, generates a signature from a key when using it to authenticate you to an SSH server.)
The Shadowserver Foundation identifies thousands of Ivanti VPN instances likely impacted by a recent remote code execution flaw.
Researchers uncover a fresh wave of the Raspberry Robin campaign spreading malware through malicious Windows Script Files (WSFs) since March 2024.
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When a hacker called the company that his gang claimed to breach, he felt the same way that most of us feel when calling the front desk: frustrated.
The phone call between the hacker, who claims to represent the ransomware gang DragonForce, and the victim company employee was posted by the ransomware gang on its dark web site in an apparent attempt to put pressure on the company to pay a ransom demand. In reality, the call recording just shows a somewhat hilarious and failed attempt to extort and intimidate a company’s rank-and-file employees.
Streaming giant Roku has confirmed a second security incident in as many months, with hackers this time able to compromise more than half a million Roku user accounts.
In a statement Friday, the company said about 576,000 user accounts were accessed using a technique known as credential stuffing, where malicious hackers use usernames and passwords stolen from other data breaches and reuse the logins on other sites.
A previously unknown ransomware gang has been attacking Russian businesses with malware based on the leaked source code from the Conti hacking group.
The gang, which researchers at the Moscow-based cybersecurity company F.A.C.C.T. have dubbed “Muliaka," or Muddy Water in English, has left minimal traces from its attacks but has likely been active since at least December 2023.
On April 10, 2024, Volexity identified zero-day exploitation of a vulnerability found within the GlobalProtect feature of Palo Alto Networks PAN-OS at one of its network security monitoring (NSM) customers. Volexity received alerts regarding suspect network traffic emanating from the customer’s firewall. A subsequent investigation determined the device had been compromised. The following day, April 11, 2024, Volexity observed further, identical exploitation at another one of its NSM customers by the same threat actor.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) said today it is investigating a breach at business intelligence company Sisense, whose products are designed to allow companies to view the status of multiple third-party online services in a single dashboard.…
If you use FortiClientLinux, update immediately. Critical vulnerability could let attackers run code on your system. Patch now, get the details here.
The LockBit cybercriminal outfit appears to be planning a ransomware rebrand as the DarkVault, discovered after LockBit seemingly bungled the new website’s design.