Sextortion email scammers increase their “Hello pervert” money demands

Every so often the sextortion emails that start with “Hello pervert” get a redesign. You may have received one yourself: The emails claim that the sender has been watching your online behavior and caught you red-handed doing activities that you would like to keep private. The email usually starts...

Measuring Modern Phishing Tactics: a Quantitative Study of Body Obfuscation Prevalence, Co-Occurrence, and Filter Impact

Phishing attacks frequently use email body obfuscation to bypass detection filters, but quantitative insights into how techniques are combined and their impact on filter scores remain limited. This paper addresses this gap by empirically investigating the prevalence, co-occurrence patterns, and...

New Malware Campaign Uses Cloudflare Tunnels to Deliver RATs via Phishing Chains

A new campaign is making use of Cloudflare Tunnel subdomains to host malicious payloads and deliver them via malicious attachments embedded in phishing emails. The ongoing campaign has been codenamed SERPENTINECLOUD by Securonix. It leverages "the Cloudflare Tunnel infrastructure and Python-based...

Exposure of Private Personal Information to an Unauthorized Actor

Overview Affected versions of this package are vulnerable to Exposure of Private Personal Information to an Unauthorized Actor in the process that sends audit log notifications via email. An attacker can obtain the IP address of users by intercepting or accessing these email notifications through...

CVE-2025-5986

A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data e.g. using /dev/urandom on Linux or to...

Rare Werewolf APT Uses Legitimate Software in Attacks on Hundreds of Russian Enterprises

The threat actor known as Rare Werewolf formerly Rare Wolf has been linked to a series of cyber attacks targeting Russia and the Commonwealth of Independent States CIS countries. "A distinctive feature of this threat is that the attackers favor using legitimate third-party software over developin...

Security Vulnerabilities fixed in Thunderbird 128.11.1 — Mozilla

A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data e.g. using /dev/urandom on Linux or to...

Mozilla Thunderbird < 139.0.2

The version of Thunderbird installed on the remote Windows host is prior to 139.0.2. It is, therefore, affected by a vulnerability as referenced in the mfsa2025-50 advisory. - A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's...

Sleep with one eye open: how Librarian Ghouls steal data by night

Introduction Librarian Ghouls, also known as "Rare Werewolf" and "Rezet", is an APT group that targets entities in Russia and the CIS. Other security vendors are also monitoring this APT and releasing analyses of its campaigns. The group has remained active through May 2025, consistently targetin...

Malicious Browser Extensions Infect Over 700 Users Across Latin America Since Early 2025

Cybersecurity researchers have shed light on a new campaign targeting Brazilian users since the start of 2025 to infect users with a malicious extension for Chromium-based web browsers and siphon user authentication data. "Some of the phishing emails were sent from the servers of compromised...

VulnCheck KEV: CVE-2025-48926

The admin panel in the TeleMessage service through 2025-05-05 allows attackers to discover usernames, e-mail addresses, passwords, and telephone numbers...

A Flyby on the CFO's Inbox: Spear-Phishing Campaign Targeting Financial Executives with NetBird Deployment

A Flyby on the CFO's Inbox: Spear-Phishing Campaign Targeting Financial Executives with NetBird Deployment By Trellix · May 28, 2025 This blog was written by Srini Seethapathy Trellix wants to acknowledge thequick response from NetBird following our initial findings. NetBird acted immediately to...

FBI Warns of Silent Ransom Group Targeting Law Firms via Scam Calls

FBI warns law firms: Silent Ransom Group uses phishing emails and fake IT calls to steal data, demanding ransom to prevent public leaks. The agency is also urges victims to share ransom evidence...

Hackers Use Fake VPN and Browser NSIS Installers to Deliver Winos 4.0 Malware

Cybersecurity researchers have disclosed a malware campaign that uses fake software installers masquerading as popular tools like LetsVPN and QQ Browser to deliver the Winos 4.0 framework. The campaign, first detected by Rapid7 in February 2025, involves the use of a multi-stage, memory-resident...

CVE-2024-43208

Missing Authorization vulnerability in Matt Miller Send Emails with Mandrill send-emails-with-mandrill allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Send Emails with Mandrill: from n/a through = 1.4.1...

CVE-2024-8319

The Tourfic plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.11.20. This is due to missing or incorrect nonce validation on the tforderstatusemailresendfunction, tfvisitordetailseditfunction, tfcheckinoutdetailseditfunction,...

CVE-2024-1370

The Maintenance Page plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the subscribedownload function hooked via AJAX action in all versions up to, and including, 1.0.8. This makes it possible for authenticated attackers, with subscriber access...

CVE-2024-4787

The Cost Calculator Builder PRO for WordPress is vulnerable to arbitrary email sending vulnerability in versions up to, and including, 3.1.75. This is due to insufficient limitations on the email recipient and the content in the 'sendpdf' and the 'sendpdffront' functions which are reachable via...

CVE-2024-5483

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.2.6.8 due to incorrect implementation of getitemspermissionscheck function. This makes it possible for unauthenticated attackers to extract basic...

CVE-2024-1717

The Admin Notices Manager plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the handleajaxcall function in all versions up to, and including, 1.4.0. This makes it possible for authenticated attackers, with subscriber-level access and above, to...