Latest cybersecurity reporting from selected sources.

Microsoft warns of a phishing campaign targeting the hospitality sector with fake guest emails that install TonRAT using resilient persistence. Microsoft Threat Intelligence published a detailed analysis on an ongoing hacking campaign against hospitality organizations that has been running since April 2026. The targets are specific: device names observed across compromised environments include strings like […]

ESET warns that North Korean hackers compromised a Yanbian gaming site in a supply‑chain attack, trojanizing Windows and Android software to spy on users

Huntress is warning that threat actors are exploiting three recently disclosed security flaws in Microsoft Defender to gain elevated privileges in compromised systems

Hijacking DNS Settings Helps Russian Hackers Decrypt TLS Traffic, Microsoft WarnsHackers tied to Russia's GRU military intelligence agency are compromising SOHO routers to hijack their DNS settings and spy on the cloud activities of high-value government, IT, telecommunications and energy organizations, Microsoft warns.

200 orgs and 5,000 devices compromised so far in Vlad's latest intelligence grab, Microsoft reckons The UK's National Cyber Security Centre (NCSC) has issued a fresh warning about Russia's ongoing targeting of routers to steal passwords and other secrets.…

A "coordinated developer-targeting campaign" is using malicious repositories disguised as legitimate Next.js projects and technical assessments to trick victims into executing them and establish persistent access to compromised machines

Microsoft Says Hackers Pivoting to Identity CompromiseHackers are as likely to log in as break in, warns Microsoft in an annual assessment of cyberthreats. During the first half of 2025, identity-based attacks rose by 32% due to credentials stolen by infostealers or password and email combinations plucked from bulk data breaches.

Fancy Bear can't keep its claws out of Outlook inboxes The UK government is warning that Russia's APT28 (also known as Fancy Bear or Forest Blizzard) has been deploying previously unknown malware to harvest Microsoft email credentials and steal access to compromised accounts.…

Akamai Researchers Flag 'BadSucessor' in Windows Server 2025An unpatched flaw in Windows Server 2025 that is "trivial" to exploit and present in the default configuration is full domain compromised, warns new research from Akamai. The flaw is present in a new account type known as delegated managed service accounts, or dMSA.

Domain Controllers Commandeered to Distribute Malware, Warns MicrosoftRansomware hackers are hitting up Active Directory domain controllers to boost privileges within compromised networks, warns Microsoft. Nearly eight out of every 10 human-operated cyberattacks involves a breached domain controller. Securing the servers is a challenge.

Microsoft warns that Chinese threat actors use the Quad7 botnet, compromised of hacked SOHO routers, to steal credentials in password-spray attacks. [...]

Microsoft is warning of cyber attack campaigns that abuse legitimate file hosting services such as SharePoint, OneDrive, and Dropbox that are widely used in enterprise environments as a defense evasion tactic

Microsoft warns that ransomware threat actor Storm-0501 has recently switched tactics and now targets hybrid cloud environments, expanding its strategy to compromise all victim assets. [...]

Cybersecurity researchers are warning about a new phishing campaign that targets Microsoft OneDrive users with the aim of executing a malicious PowerShell script

Company Is Sending Email Alerts to Customers Whose Data Was Accessed by HackersMicrosoft is alerting its customers whose data may have been accessed by Russian state hackers following a January attack that compromised the emails of company executives. Microsoft also shared a link to a custom-built secure system that customers can use to review their stolen data.

Microsoft Warns APT28's GooseEgg Tool Enables Credential TheftRussian military intelligence hackers are using an 18 month-old vulnerability in the Windows print spooler utility to deploy a custom tool that elevates privileges and steals credentials. Microsoft says it's seen post-compromise activities against Ukrainian, European and North American governments.

Mispadu Trojan Is Compromising Windows Security, Posing Threat to Banking SystemsThe novel variant of the banking Trojan Mispadu is targeting Latin American countries, especially Mexico, by exploiting a flaw in Windows SmartScreen. In this latest distribution method, the attackers send spam emails that deliver deceptive URL files that circumvent the SmartScreen banner warning.

Microsoft Details OAuth Tactics, Says Losses Reached Up to $1.5M Per VictimHackers are exploiting OAuth applications to compromise user accounts, manipulate and confer elevated privileges, and set up cryptomining operations, which has cost some organizations up to $1.5 million in losses, according to Microsoft's Threat Intelligence team.

Microsoft has warned that adversaries are using OAuth applications as an automation tool to deploy virtual machines (VMs) for cryptocurrency mining and launch phishing attacks

Microsoft observed attackers continually attempting to compromise connected systems at the 2022 World Cup