Latest cybersecurity reporting from selected sources.

Cybersecurity researchers are calling attention to an active device code phishing campaign that's targeting Microsoft 365 identities across more than 340 organizations in the U.S., Canada, Australia, New Zealand, and Germany

Meta on Wednesday said it disabled over 150,000 accounts associated with scam centers in Southeast Asia as part of a coordinated effort in partnership with authorities from Thailand, the U.S., the U.K., Canada, Korea, Japan, Singapore, the Philippines, Australia, New Zealand, and Indonesia

A 39-year-old Australian national who was previously employed at U.S. defense contractor L3Harris has been sentenced to a little over seven years in prison for selling eight zero-day exploits to Russian exploit broker Operation Zero in exchange for millions of dollars

Also: Australia's AI Policy Backtrack, Legal Protections for White Hat HackersIn this week's ISMG Editors' Panel, four editors explored Australia's shift in artificial intelligence regulatory policy, a resurgence of white hat hackers in the news and the shadow Telegram market of Russian fraudsters who are selling identities of former U.S. immigrants for $1,000 a person.

Treasury Links Russian Bulletproof Host Network to Prolific Ransomware OperationsThe U.S., U.K. and Australia sanctioned Russian bulletproof host Media Land for supporting major ransomware gangs, including LockBit and Play, a move paired with new global guidance urging internet service providers to tighten access controls and disrupt cybercrime infrastructure.

Today, the United States, the United Kingdom, and Australia announced sanctions targeting Russian bulletproof hosting (BPH) providers that have supported ransomware gangs and other cybercrime operations. [...]

DoorDash has disclosed a data breach that hit the food delivery platform this October. Beginning yesterday evening, DoorDash, which serves millions of customers across the U.S., Canada, Australia, and New Zealand, started emailing those impacted by the newly disclosed security incident. [...]

DoorDash has disclosed a data breach that hit the food delivery platform this October. Beginning yesterday evening, DoorDash, which serves millions of customers across the U.S., Canada, Australia, and New Zealand, started emailing those impacted by the newly disclosed security incident. [...]

Also, Australian Police Arrest 55 in New Round of Anom App StingThis week: UPenn hit by email breach, Australian police arrested 55, 'SesameOp' backdoor hid C2 traffic, BEC scammers used AWS, hackers stole trucking cargo, Ukrainian national extradited to United States for role in Conti ransomware and a supply chain risk in advanced installer tool.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) and National Security Agency (NSA), along with international partners from Australia and Canada, have released guidance to harden on-premise Microsoft Exchange Server instances from potential exploitation

Fraud Expert Trace Fooshee on Regulatory Steps Needed to Curb Payment ScamsWhile the U.K. and Australia have mobilized multiple sectors to tackle payment scams, the United States faces complex hurdles. The U.S. can't replicate other regulatory models but it can pursue targeted actions such as regulating scam-prone ad platforms and creating a central fraud-fighting agency.

Cybersecurity researchers have shed light on a new ransomware-as-a-service (RaaS) operation called GLOBAL GROUP that has targeted a wide range of sectors in Australia, Brazil, Europe, and the United States since its emergence in early June 2025

Group's Advisory Follows an Updated Joint Alert from US, Australian AgenciesThe American Hospital Association is warning hospitals and other healthcare sector organizations of rising double-extortion attack threats involving the Play ransomware group. The AHA alert follows an updated joint government advisory issued last week about Play's latest tactics.

Cybersecurity agencies from Australia, Canada, New Zealand, and the United States have published a joint advisory about the risks associated with a technique called fast flux that has been adopted by threat actors to obscure a command-and-control (C2) channel

This move comes less than a year after the United States banned Kaspersky products, out of the same fear that the company is under Russian government control.

US, UK and Australia Target Zservers for Supporting LockBit, Other Cybercrime GroupsA Russian bulletproof hosting service used by cybercriminals including the LockBit ransomware group has been sanctioned by Australian, British and American agencies. Zservers has been advertised in criminal forums as an aid to avoid law enforcement investigations and takedowns.

'Near-global' initial access campaign active since 2021 An initial-access subgroup of Russia's Sandworm last year wriggled its way into networks within the US, UK, Canada and Australia, stealing credentials and data from "a limited number of organizations," according to Microsoft.…

​The United States, Australia, and the United Kingdom have sanctioned Zservers, a Russia-based bulletproof hosting (BPH) services provider, for supplying essential attack infrastructure for the LockBit ransomware gang. [...]

Five Eyes cybersecurity agencies in the UK, Australia, Canada, New Zealand, and the U.S. have issued guidance urging makers of network edge devices and appliances to improve forensic visibility to help defenders detect attacks and investigate breaches. [...]

Ken Palla on Lessons From U.K and Australia to Reduce Fraud and ScamsThe U.S. Consumer Financial Protection Bureau's decision to file a lawsuit against Zelle is too late and too narrow to reduce scams, said Ken Palla, retired director with MUFG Bank. CFPB last month sued the operator of Zelle, as well as three banks for failing to protect consumers from fraud.