Error 524 Decoy: Unmasking a Global Smishing Operation Hiding Behind Error Pages


Group-IB researchers expose a large-scale smishing and phishing operation impersonating 260+ brands across 72 countries, using fake Cloudflare error pages, geofencing, and encrypted WebSocket channels for real-time credit card theft.

 

Read more…
Source:  Group IB


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • UK: Man arrested in connection with cyber-attack on airports

    September 24, 2025

    A person has been arrested in connection with a cyber-attack which has caused days of disruption at several European airports including Heathrow. The National Crime Agency (NCA) said a man in his forties was arrested in West Sussex “as part of an investigation into a cyber incident impacting Collins Aerospace”. There have been hundreds of flight ...

  • Top auto insurance firm leaked over 5 million records

    September 24, 2025

    ClaimPix, a company which streamlines car insurance claims, was leaking sensitive customer data on the clearweb, including people’s phone numbers, and email addresses, an expert has warned. Security researcher Jeremiah Fowler, known for hunting down misconfigured and unprotected databases, recently found one such instance containing 5.1 million files, sharing his findings with WebsitePlanet. The archive was ...

  • Serious Microsoft Entra flaw could have let hackers infiltrate any user – patch now

    September 22, 2025

    Security researchers have found a critical vulnerability in Microsoft Entra ID which could have allowed threat actors to gain Global Administrator access to virtually anyone’s tenant – without being detected in any way. The vulnerability consists of two things – a legacy service called “actor tokens”, and a critical Elevation of Privilege bug tracked as CVE-2025-55241. ...

  • Stellantis detects breach at third-party provider for North American customers

    September 22, 2025

    Stellantis detected unauthorized access to a third-party service provider’s platform that supports its North American customer service operations, the company said in a statement on Sunday. The automaker said the incident, which is under investigation, exposed only basic contact information and did not involve financial details or sensitive personal data. Stellantis did not specify how many ...

  • Cyber-attack causes delays at Heathrow and other European airports

    September 20, 2025

    Heathrow is among several European airports hit by a cyber-attack affecting an electronic check-in and baggage system. The airport warned of possible delays due to a “technical issue” affecting software provided by Collins Aerospace to several airlines. Brussels Airport said a cyber-attack on Friday night meant passengers were being checked in and boarded manually, while Berlin’s ...

  • WatchGuard warns users Firebox firewalls may have a critical issue

    September 19, 2025

    WatchGuard has fixed a critical-severity vulnerability affecting its Firebox firewalls and is urging users to apply the newly released patch without hesitation. In a security advisory, the company said it addressed an out-of-bounds write vulnerability in the WatchGuard Fireware OS iked process, which “may allow a remote unauthenticated attacker to execute arbitrary code”. The vulnerability was ...