A Ukrainian lawyer who wound up coding malware for the Conti ransomware gang has been sentenced to four years in a US prison. Oleksii Oleksiyovych Lytvynenko, 44, pleaded guilty in June to conspiracy to commit wire fraud over his role in Conti, the Russia-linked ransomware operation associated with more than 1,000 victims and at least $150 million in ransom payments. Lytvynenko took an unusual route into the ransomware business. The Ukrainian national, who later lived in Cork, Ireland, trained as a lawyer before joining Conti as an intruder and developer. According to his plea agreement [PDF], Lytvynenko operated under the handle "henry" and joined a team run by another Conti conspirator known as "silver" or "buza." He was recruited to help with coding and directed to work on a malware loader – software designed to get other malicious code running on a victim's machine. Prosecutors said his Google account showed he had also been doing some homework. Investigators found books and videos about malware and hacking alongside Conti malware, ransom notes, and stolen victim data. Prosecutors said he also used Google and ZoomInfo to research potential targets. Lytvynenko wasn't confined to writing code, according to the filing. Evidence from his online accounts showed that he possessed data stolen from eight US victims and four overseas, with the eight American victims reporting more than $1.5 million in losses. Court documents identify several Bitcoin transfers tied to his Conti work, including 0.4 BTC worth $25,042 that prosecutors traced back to one of his victims. He has been ordered to forfeit the same amount. Conti disbanded in 2022 after its internal chats and source code were leaked following the gang's public support for Russia's invasion of Ukraine. Lytvynenko apparently didn't take that as his cue to find another line of work. When Gardaí turned up at his County Cork home in July 2023, they said they found his laptop open, Cobalt Strike running and a Rocket.Chat session connected over Tor. Prosecutors said evidence recovered from the machine showed that his involvement in ransomware activity had continued after Conti disbanded. Lytvynenko was extradited from Ireland to the US in October 2025. The Justice Department says Conti attacked organizations across 47 US states, the District of Columbia, Puerto Rico, and 31 foreign countries between 2020 and 2022. By January 2022, the FBI estimated that victim payouts associated with Conti exceeded $150 million. Lytvynenko will now have four years to contemplate a career change. ®

Cybercriminals have reeled in password hashes and corresponding salts belonging to users of popular fishing app Fishbrain, opening the door to cracking attempts. Fishbrain AB, which says its eponymous app serves more than 20 million anglers, disclosed the August 19 breach to the California Attorney General's Office this week. The unknown perpetrators helped themselves to a trawl of user data, including names, dates of birth, email addresses, phone numbers, Fishbrain usernames, country information, password hashes, and salts. "Fishbrain passwords were not stored in plaintext; however, Fishbrain has determined that the compromised password hashes for some users may be susceptible to being decoded," the company said in its disclosure [PDF]. It added: "If you use your Fishbrain password for any other online accounts, you should promptly update those passwords and any associated security questions or answers. "You should also take other appropriate steps to protect any online accounts that use the same username or email address and password combination. We recommend using a strong, unique password for each of your accounts." With the hashes and salts in hand, attackers can make password guesses using their own hardware until they potentially recover the original credentials. Whether those attempts succeed depends on the strength of each password and the hashing algorithm Fishbrain used, which the company did not disclose. Fishbrain did not comment on the scale of the breach or how many of its claimed 20 million-plus users were affected. The Register asked Fishbrain for more information. After discovering the intrusion and conducting an initial forensic investigation, Fishbrain patched the vulnerability and reset every user's password. Customers must create a new one the next time they log in. Fishbrain also said it "restricted access to the affected environment," strengthened its security controls, and initiated "a broader review of our data security measures" while the investigation continues. Fisherfolk should also keep an eye out for phisherfolk using the stolen personal data to bait follow-on attacks. ®

International law enforcement agencies, working with CrowdStrike and Shadowserver Foundation, have disrupted Sality, a 23-year-old peer-to-peer botnet used to deliver malware to more than 15,000 machines worldwide. The botnet has operated since 2003 and distributed all types of malicious code to victims, spanning credential theft, spam distribution, proxy services, network exploitation, and distributed denial-of-service (DDoS) attacks. For the past eight years, Sality’s primary payload has been EggJagger, a tool that monitors clipboards for cryptocurrency wallet addresses, then silently replaces them with attacker-controlled addresses. When a victim copies a bitcoin or ethereum address to make a payment, the malware redirects funds into the criminals’ wallets. CrowdStrike estimates Sality's operator stole at least $150,000 in cryptocurrency using EggJagger alone. On Monday, CrowdStrike's Counter Adversary Operations team, working with international law enforcement agencies and industry partners, disrupted Sality by executing a peer-to-peer sinkhole operation. This operation isolated infected machines, which broke the criminal operator’s ability to communicate with devices on its network. Once isolated, the bots can no longer receive payload download instructions or direct payload transfers, effectively breaking the botnet. “In practice, the operation targeted the data structure at the heart of every bot's network awareness: its peer list,” CrowdStrike Counter Adversary Operations team said in a technical writeup about the takedown. Each Sality bot maintains a list of known super peers – publicly reachable infected machines that form the backbone of the P2P network. Every 40 minutes, the bots check to see if their peers are still online. Peers that fail to respond are purged from the network. The counterattack took advantage of this by removing legitimate super peers in each bot’s peer list, continually isolating more infected machines in the network, and inserting purpose-built sinkhole entries into peer lists. That approach gave police and cyber operatives visibility into the operation’s progress and helped them notify victims. In addition to the sinkhole operation, the US Justice Department, FBI, and Department of Defense Office of Inspector General’s Defense Criminal Investigative Service seized Sality-linked domains in the US. Meanwhile, international law enforcement in Bulgaria, Hungary, and Romania took action against additional Sality-linked domains hosted in Europe. Meanwhile, the Shadowserver Foundation is working with internet service providers and Computer Security Incident Response Teams (CSIRTs) to identify infections and aid in victim notification and remediation.®

Two major healthcare businesses, Boston Scientific and McKesson, disclosed more details over the weekend about separate cyberattacks that disrupted global operations and resulted in stolen patient data, respectively. Medical-device maker Boston Scientific, whose IT systems were hacked by unknown intruders last week, said the cyberattack remains ongoing. It also noted that pacemakers and other heart devices implanted after the August 25 breach cannot provide remote monitoring and data transmission as intended. “New remote monitoring communicators cannot be activated, thus available device data will NOT be transmitted to remote patient management systems until the communicator can be activated,” the medtech firm said in a late Friday update. This applies to all new cardiac rhythm management implants other than insertable cardiac monitors (ICM). ICM devices must be activated using the Boston Scientific Clinic Assistant app to ensure the device correctly records patients’ heart rhythms, the company added. Because of the cyberattack, “new ICMs are unable to pair to the patient remote monitoring mobile phone, therefore available episode data recorded by the ICM will NOT be transmitted to the remote monitoring system until the ICM can be paired to the patient mobile app,” according to the update. The devices will still record any episodes, and patients can transmit these to the remote monitoring system by in-person transmission via the Clinic Assistant app. This is done by selecting the “interrogate” button, according to the company. Once its IT systems are back up and running, and the heart devices can pair with home monitoring equipment, they will again transmit recorded data to the remote systems. However, the company does not have a timeline for full restoration. “We are currently working on restoring affected functions and systems access,” Boston Scientific said on Saturday. The digital intrusion also affected the firm’s manufacturing, shipping, and ordering, it noted. “We are expeditiously working towards partial restoration for the shipping of some products this week,” according to a Sunday update. “Once we can demonstrate the restoration is fully operable, we anticipate ordering and shipping will ramp up to full capacity.” Boston Scientific has hired CrowdStrike to assist with the investigation and restoration efforts, and said the attack did not affect its cloud-based systems and apps - just “certain on-premise systems” - and added that it has seen no indication of unauthorized IT activity since August 25. The firm has repeatedly declined to answer The Register’s questions about the compromise, including whether it was a ransomware infection and which criminal crew is responsible. McKesson confirms breach as ShinyHunters claims responsibility Meanwhile, in another cybersecurity incident that has been very publicly claimed by the criminal perpetrator: pharmaceutical and medical supply giant McKesson over the weekend confirmed an intrusion after ShinyHunters on Friday told The Register it broke into the company’s Snowflake and Salesforce instances and stole millions of patients’ data. “Based on our investigation thus far, including assessments by leading cybersecurity industry experts supporting our response, we’ve confirmed that the unauthorized access to certain third-party applications and the exfiltration of certain data was associated with a subset of customers within our Oncology & Multispecialty and Medical-Surgical business units,” Francisco Fraga, McKesson executive VP, chief information officer and chief technology officer, said in a Saturday statement. The medical firm did not immediately respond to The Register’s questions, including how many patients were affected and what “certain data” was stolen. McKesson supports about 3,300 oncology providers in 29 states, according to its website. Fraga’s statement noted that distribution centers remain operational and McKesson continues to ship products. The firm has “reasonable assurance” that the digital intruders have been kicked out of the third-party environments and aren’t lurking around McKesson’s systems, he added. A ShinyHunters spokesperson told us that the notorious extortion group compromised more than 284 million records of patient data, and demanded McKesson pay $55.2 million or else they would leak the stolen data. However, as Have I Been Pwned boss Troy Hunt recently reminded everyone: Don’t confuse criminals’ claims with gospel truth, and “take headline numbers with a grain of salt unless you're confident in the processes of those making the claims." This was after Hunt’s HIBP service reported 12.9 million individuals affected by retailer Carhartt’s alleged breach. This number was around half of what ShinyHunters claimed when they leaked the company’s data earlier this month. The McKesson records, according to the ShinyHunters spokesperson, include patients’ full names, home and email addresses, phone numbers, dates of birth, Social Security numbers, appointment dates and notes, and sensitive illness details including cancer locations on people’s bodies. The group also claims to have swiped emails containing private information from doctors to patients. The spokesperson told us they accessed the company’s Snowflake and Salesforce instances by voice phishing “multiple employees.” This is a tried-and-true method popularized by the data-theft-and-extortion gang, which has victimized other medical providers in recent months. These include pacemaker manufacturer Medtronic in April, and cancer diagnostics business Exact Sciences in July. ®

AI is becoming both an attack tool and a high-value target, with attacks by AI-enabled adversaries rising 89 percent in 2025, according to CrowdStrike. The security firm's annual Threat Hunting Report details criminal gangs and nation states using AI throughout the attack chain. Attackers are also targeting organizations' AI infrastructure and poisoning popular software packages to compromise their users. "AI is both the weapon and the target," CrowdStrike counter adversary division senior VP Adam Meyers told reporters. "AI is a high-value attack surface, and it's being used by more and more threat actors." These attacks include LLMjacking, in which criminals steal corporate credentials to access frontier-model APIs, and cost harvesting – deliberately inflating a victim's AI usage to run up its bill. In one campaign, CrowdStrike documented a token thief sending about 200,000 API requests in just two minutes. The security vendor's threat hunting team now tracks AI agent-triggered leads at 2.5x the rate of human-triggered threats, and Meyers said this increased volume remains true across both government-backed goons and financially motivated criminals. CrowdStrike tracks more than 290 adversary groups, having added about ten this year. Of the 290, a North Korean crew it tracks as Famous Chollima – a sub-unit operating under the Lazarus Group umbrella and best known for its fake IT worker scams – "demonstrated the most advanced AI usage" over the second half of 2025 and first half of 2026, according to the report. This government-backed crew created "entire fake companies with AI-generated websites, GitHub accounts, and email infrastructure to support insider threat operations," the authors wrote. AI supply-chain compromise was the second most common MITRE ATLAS technique used by attackers to gain initial access, and Famous Chollima's campaign targeting AI-focused development environments "was one of the most sophisticated examples of this technique in practice," the report noted. This included a supply-chain attack in January and February targeting cryptocurrency and blockchain companies. In these attacks, the Norks published trojanized repositories, primarily hosted on GitHub, that contained legitimate-looking project files alongside hidden, malicious scripts. When developers opened these repos, malicious scripts automatically executed commands that gave Famous Chollima access to their environments. "AIs themselves are being targeted through that supply chain and through the CI/CD pipelines that they're dependent on," Meyers said. Threat hunters suspect another Lazarus Group offshoot, tracked as Stardust Chollima or Sapphire Sleet, was behind the March Axios supply chain attack. Last week, Amazon attributed four npm compromises over the past 18 months to the same North Korean crew. Meanwhile, a financially motivated crew tracked by CrowdStrike as Altered Spider and elsewhere as TeamPCP targeted developers' AI tools, compromising more than 300 software dependencies in one day. It harvested credentials and secrets before pivoting into cloud environments for theft and extortion. Altered Spider "hits the endpoint in seconds and within minutes, they're inside of the cloud," Meyers said. "It gives you a sense of how quickly they can move throughout that environment, and this is all tied again to software supply chains." Patching window slams shut CrowdStrike argues that AI is helping attackers exploit newly disclosed vulnerabilities at machine speed. From January to June, 88 percent of the exploitation observed by CrowdStrike using public proof-of-concept (PoC) code occurred within 48 hours of the code's release. The company said China-linked groups such as Vault Panda and Genesis Panda moved even faster, launching attacks within 24 hours of disclosure. "Vulnerabilities are weaponized through the use of AI," Meyers said. "This is creating a rich ecosystem of vulnerabilities for attackers to use against various systems, and what this really means is that the 30-day patch window, which frankly, was aspirational, is completely obsolete. We're down to 24-hour, 48-hour patch cycles, and organizations are really struggling under that." Meanwhile, as anyone who follows Microsoft's Patch Tuesday – or any other software vendors' vulnerability disclosures over the past few months – knows, AI is also really good at finding bugs in code. This means more CVEs and more patching for sysadmins racing to fix flaws before miscreants reverse-engineer the updates and develop exploits. "In 2025, there were something like 48,200 CVEs that were registered," Meyers said. "We're already, as of last week, at 43,000 for this year. We're not even into August yet, and we're already coming very close to the number from last year." June alone saw more than 7,600 software bugs reported and tracked through CVEs, he added. "The vulnerability ecosystem is going to be the big story for the next couple of months." ®

Europol and its partners' investigators flagged 4,340 “horrific” URLs for removal over several weeks in June and July as part of an ongoing crackdown on The Com (short for community), a loosely knit network of online groups whose young members participate in a range of illicit activities. These range from hacking, swatting, and digital extortion to real-life shootings, stabbings, and other physical violence. Europol’s recent Referral Action Days, aimed at disrupting The Com’s online ecosystem and stopping the spread of its propaganda, is part of the larger Project Compass operation. Project Compass began in 2025, and its partner law-enforcement agencies span the US, UK, and EU member states. Investigators from Belgium, Finland, Hungary, Ireland, Luxembourg, the Netherlands, Portugal, Spain, and Sweden participated in the Referral Action Days during June and July. Various groups linked to The Com post content online to recruit members and groom young victims using social media, gaming platforms, and messaging apps. “The more extreme and harmful the content a user or group can produce or extort, the higher their status within the online community,” according to Europol. “These acts are often livestreamed on social media platforms, where online bystanders cheer them on, and later saved and disseminated.” The URLs flagged for removal during this latest push to disrupt The Com’s recruiting activities included “violent videos and images depicting self-harm, suicide, child sexual abuse material (CSAM), animal cruelty, and violent attacks,” the international cops said. This, the European cops say, includes so-called blood walls, which are paintings made with blood that display the extorter’s alias and group affiliation, and cut-signs, where the victims are forced to carve the extorter’s name into their bodies. It also includes videos of street attacks and arson, plus manuals on how to commit these violent attacks, along with instructions on grooming and extorting vulnerable minors, and conducting doxxing and swatting. Europol says its European Counter Terrorism Centre has received “hundreds” of requests from member states and others over the past two years to help investigate crimes linked to The Com. It describes the online network as a “global threat, particularly concerning minors as both victims and perpetrators.” Last year, both the UK and US issued similar warnings about a subset of The Com that recruits children and teens for contract shootings, kidnappings, and other real-life violent crimes. In July 2025, the FBI said that In Real Life (IRL) Com had become increasingly brazen in its swat-for-hire and violence-as-a-service solicitations. The FBI's alert followed a similar notice from the UK National Crime Agency about a "deeply concerning" trend of The Com recruiting teenage boys to commit a range of criminal acts, from cyber fraud and ransomware to child sexual abuse.®