Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

SharePoint RCE: AI-Discovered Exploit Chain (CVE-2026-55040, CVE-2026-63520)

A JWT authentication bypass and a remote code execution vulnerability in Microsoft SharePoint, chained together, give an attacker full control of a vulnerable server with zero credentials. Tracked as CVE-2026-55040 and CVE-2026-63520, the pair was discovered and weaponized by Rapid7 Labs. The goal was to test whether an AI agent, guided by human researchers, could find and weaponize a real exploit chain. It could.

Static credentials are still AI's easiest way in

Netwrix's 2026 research found a 4x gap in breach rates between organizations where AI has significantly grown their identity count and those where it hasn't. Static credentials are AI’s easiest way in: passwords, keys, and tokens that never expire and never get checked. AI didn't invent the over-privileged credential, it just found the fastest way to use one.

Beyond the Inbox: How BEC Leads to SSO Abuse

For years, many business email compromise (BEC) investigations have followed a familiar playbook: an attacker phishes credentials, logs into the victim's mailbox, establishes persistence with inbox rules, monitors communications, and waits for an opportunity to steal money or sensitive information. Today, we're seeing something different at LevelBlue. Across multiple recent investigations, we've observed attackers treating a compromised mailbox as just the first step.

Sophos MDR: Define MDR Contacts in Sophos Central

A step-by-step tutorial showing you how to define your Sophos Managed Detection and Response (MDR) authorized contacts and threat response mode in Sophos Central. As a Sophos MDR customer, assigning authorized contacts lets you fully utilize the service. This instructs the Sophos MDR Operations team who to contact and how to take action during an active threat. You're prompted to take these steps in Sophos Central after activating a new Sophos MDR license, and you can modify this information at any time.

OWASP LLM Top 10 2026: the model will be fooled, the question is what breaks

The OWASP GenAI Security Project published the 2026 edition of its Top 10 for LLM Applications. Prompt Injection stayed at number one. Sensitive Information Disclosure stayed at number two. Read the headlines and you would conclude that not much moved. Something did move, and it is not in the rankings. The project leads open by telling you to stop trying to build a model that cannot be fooled, and to build the system around it so that when the model is fooled, nothing important breaks.

What an AI Compliance Audit Involves, Stage by Stage

An AI compliance audit is less mysterious than its absence from most planning suggests. Someone outside the organization reads what you wrote down, then samples real systems to test whether the organization does what the documents describe. The distance between those two things is where findings come from. ‍ Three different exercises get called an AI audit, and they run differently. Certification against a management standard follows a defined two-stage process.

Where Cyber Loss Comes From: Attack Vectors Ranked by Exposure

Security awareness receives a disproportionate share of attention relative to the exposure phishing carries. Modeled against initial access technique, valid account abuse accounts for around a quarter of expected annual loss in a typical portfolio, exploitation of public-facing applications around a fifth, and human error around a seventh. Phishing appears sixth, at roughly seven percent.

MITRE ATT&CK Framework: A Practical Guide for SOC Teams

You are already in the meeting, and the question on the table sounds simple: can the SOC detect a technique tied to a noisy intrusion path? Three analysts answer three different ways because each one is staring at a different dashboard, a different log source, and a different mental model. The MITRE ATT&CK framework gives those people one shared way to describe adversary behavior, so the discussion starts with evidence instead of guesswork.

How to Install NAKIVO Backup & Replication on Linux

This guide shows you how to install the full NAKIVO solution — director, transporter and a default backup repository — on a Linux server in console mode. You'll also see which requirements to check before you start, and how silent installation lets you deploy NAKIVO automatically instead of running each step by hand.