Agregátor RSS
JadePuffer agentic attacks now target AI model data with ransomware
The JadePuffer autonomous AI agent has upgraded with custom malware called EncForge that focuses on encrypting AI assets, such as training datasets, vector databases, and model checkpoints. [...]
Kategorie: Hacking & Security
Scammers impersonate FBI on social media, prey on crime victims
Real FBI agents won't slide into your DMs and offer to help you recover stolen funds. The bureau's Internet Crime Complaint Center (IC3) updated an earlier warning on Monday about scammers impersonating the agency online, saying fraudsters continue to use the scheme "to deceive and revictimize individuals." According to IC3, there are two different schemes being used to target cybercrime victims, both directly and by soliciting them to report incidents. In the first scheme, IC3 said scammers create fraudulent social media profiles and pages impersonating FBI personnel or IC3. They may also infiltrate online groups for fraud victims or contact victims directly while claiming to represent the FBI or the complaint center. In other cases, victims are being contacted by someone claiming to be an FBI agent after realizing they were approached by someone trying to scam them and saying they intended to report the incident to the FBI or file an IC3 complaint. The FBI said the impersonator then directs victims to a fake IC3 update page or continues communicating through messaging apps. In the other instance, scammers are creating AI-generated videos on social media depicting senior FBI officials and directing users to a spoofed IC3 website to report cybercrimes they may have fallen victim to, with the scammers then collecting the information and using it to contact victims for further fraud. AI-generated depictions of public figures are similarly being used to make such scams appear legitimate. “Some individuals received an email or a phone call, while others were approached, or observed an advertisement via social media or forums,” the IC3 said. “Almost all complainants indicated the scammers claimed to have recovered the victim's lost funds or offered to assist in recovering funds.” Regardless of how legitimate social media profiles look, or how realistic those AI-generated videos may be, the IC3 is warning that none of them should be believed for a simple reason: The IC3 doesn’t have a social media presence of any kind, and it doesn’t investigate crimes or offer to recover lost funds through social media. “Any social media profiles or pages claiming to represent IC3 or offering to recover lost money are fraudulent and are actively attempting to steal your personal or financial information,” the IC3 warned. “IC3 will never directly communicate with individuals via phone, email, social media, phone apps, online chat, or public forums.” The IC3 said that any contact made with a cybercrime victim who reports an incident via its actual website will be made by an FBI employee from a local field office or other law enforcement official. Here’s another hot tip: If you fall victim to a cybercrime or online scam, don’t post about it on social media - that’s only going to invite someone with bad intentions to seek you out. ®
Kategorie: Viry a Červi
Malicious cloud customers can bring down the power grid
AI datacenters wreak havoc on the power grid under normal circumstances, so what happens if a bad actor controls all the GPUs and wants to cause harm? Cybersecurity researchers in China have devised a way for malicious tenants to attack their infrastructure provider, potentially causing blackouts or damaging equipment. The attack, dubbed Bit2Watt, imagines an adversary masquerading as a legitimate cloud tenant to launch GPU workloads that have the potential to damage datacenters and supporting electrical systems. It's intended to demonstrate the need to extend cybersecurity defenses to datacenter workload scheduling. The researchers, Zhouhao Ji, Kaikai Pan, and Wenyuan Xu, from Zhejiang University in Hangzhou, China, describe their technique in a preprint paper titled "Bit2Watt: A Cyber-Physical Vulnerability Exploiting GPU Workloads Across Power and Computing Infrastructures." AI training workloads represent a known challenge for datacenter operators. As Microsoft, Nvidia, and OpenAI noted in a 2025 research paper arguing the need for power stabilization during AI training, the transition from GPU computation to GPU data synchronization causes large power swings to occur. And if the frequency spectrum of these power swings is "harmonized with critical frequencies of utilities, [that] can cause physical damage to the power grid infrastructure." Meta's paper on the training of Llama 3 also cites the risk AI training poses to the power grid. It says, "During training, tens of thousands of GPUs may increase or decrease power consumption at the same time, for example, due to all GPUs waiting for checkpointing or collective communications to finish, or the startup or shutdown of the entire training job. When this happens, it can result in instant fluctuations of power consumption across the datacenter on the order of tens of megawatts, stretching the limits of the power grid." Bit2Watt weaponizes this scenario by proposing that an adversary could use malicious GPU workloads to destabilize the datacenters and electrical infrastructure. "Our results indicate that GPU loads can reach modulation frequencies exceeding 6,000 Hz, compared with only a few hertz observed in conventional household loads such as air conditioners," the Zhejiang University authors state in their paper. "Such high-frequency modulations can substantially induce voltage excursions, harmonic distortion, and damping degradation." The authors claim an attack on a 1-MW local power grid consisting mainly of distributed energy resources like photovoltaics could use 1,000 GPUs to create a total harmonic distortion of 46.8 percent, which would squander nearly half the electrical current on non-productive work and would throw off about 20 percent more heat than normal. "This not only threatens the availability of the computing equipment but also produces a negative damping ratio of -0.27, introducing an unstable mode into the system," the authors contend. "Once the protections are triggered and computing loads are shed, it can trigger cascading failures, potentially leading to blackouts exceeding 80 percent in large-scale power systems." The attack is relatively covert, the authors argue, because it can be launched within authorized workload execution paths and would likely be missed by cloud-provider monitoring frameworks. Thus, they propose that infrastructure providers coordinate defenses across the cyber and physical layers to look for malicious computation patterns. They also emphasize the need for local energy buffering systems to handle power demand spikes. Bit2Watt also potentially opens the door for a side-channel attack called Watt2Bit. The researchers note that the electrical and thermal stress on hardware from a malicious workload creates denial of service events and enables the covert exfiltration of data via power modulation. As a proof of concept, they showed they could recover a 50-bit test sequence using frequency-shift keying (FSK) encoding. "These findings underscore a fundamental shift: as power and computing infrastructures converge, security must be addressed across domains, requiring coordinated defenses that consider workload behavior, power electronics, and grid dynamics," the authors conclude. ®
Kategorie: Viry a Červi
Frontier LLMs couldn't help Hugging Face fight off evil agents
Apparently, being a leading destination for AI development doesn't mean AI will bail you out. AI agents broke into Hugging Face's production infrastructure, but commercial LLM guardrails blocked the forensic investigation, forcing it to turn to a Chinese open-weight model instead. The intrusion, “driven, end to end, by an autonomous AI agent system,” compromised a “limited set” of Hugging Face’s internal datasets and “several” credentials used by its services, according to a Thursday security incident disclosure. While the ML platform says that it’s still investigating whether any partner or customer data was exposed in the breach, there’s “no evidence of tampering with public, user-facing models, datasets, or Spaces, and our software supply chain (container images and published packages) was verified clean.” It also doesn't know which model the attackers used to power a swarm of AI agents, which, we're told, executed many thousands of individual actions across short-lived sandboxes, using self-migrating command-and-control staged on public services. “This matches the ‘agentic attacker’ scenario the industry has been forecasting,” according to the Hugging Face blog. Additionally, after unsuccessfully using unnamed frontier models to start the forensic analysis, the Hugging Face security team ultimately ran the log analysis on GLM 5.2, an open-weight model developed by Chinese AI firm Z.ai, on the platform’s own infrastructure. The advanced commercial models didn’t work because their analysis required submitting real attack commands, exploit payloads, and command-and-control artifacts - all of the things that the LLMs’ guardrails have been trained to block so that the AI systems can’t be used in real-life attacks. “The attacker was bound by no usage policy, while our own forensic work was blocked by the guardrails of the hosted models we first tried,” the security team wrote, noting that it’s not arguing against safety measures on hosted models and has shared this information with the LLM providers. Using GLM 5.2 had another benefit, Hugging Face noted: “No attacker data, and none of the credentials it referenced, left our environment.” This also serves as an important reminder to defenders, according to the AI platform. “Have a capable model you can run on your own infrastructure vetted and ready before an incident, both to avoid guardrail lockout and to keep attacker data and credentials from leaving your environment.” The Hugging Face intrusion is yet another indication that attacks carried out by autonomous AI agents are no longer a future threat, but rather the current state of AI-based intrusions. Last week, The Register spoke with TrendAI VP of AI and security threat research Tom Kellermann about another recent attack, during which a jailbroken Google Gemini did 90 percent of the work - including spinning up a new C2 server in just six minutes. The human did just 10 percent. Additionally, earlier in July, Sysdig threat hunters documented what they say is the first-ever documented agentic ransomware infection with an LLM - not a human - driving the entire extortion operation, from gaining initial access to compromising a production database server and destroying data. “Think of a burglar that never gets tired, never needs sleep, and instead of jiggling one door handle at a time, is trying a thousand of them simultaneously,” Zero Networks field CTO Chris Boehm said in an email to The Register about the Hugging Face intrusion. “That's basically what happened here. Not one guy typing commands into a terminal, a swarm of little automated processes hammering away nonstop, hopping between hiding spots to make it harder to trace,” Boehm said. He added, the “part that actually unsettles” him most is that the platform’s security team couldn’t get commercial AI tools to help analyze the attack, “because those tools were built to refuse anything that looked like a real attack command. It didn't matter that it was the good guys asking.” Boehm said the takeaway for security teams is twofold: “These agents can now move faster and more relentlessly than any human ever could, and the safety tools we're building aren't always ready to help us respond at that speed.”®
Kategorie: Viry a Červi
Zákaz mobilů ve školách vláda podpořila
Zákaz používání mobilních telefonů a dalších elektronických komunikačních zařízení ve školách, jehož uzákonění navrhli jako poslanci premiér Andrej Babiš (ANO) a ministr školství Robert Plaga (za ANO), dnes podle očekávání vláda podpořila. Novinářům to oznámil Babiš, podle Plagy byla podpora kabinetu jednomyslná. Účinnost předkladatelé navrhují od 1. září 2027. Podle opoziční ODS je plošný zákaz líbivé populistické opatření namířené proti digitální gramotnosti dětí.
Kategorie: GNU/Linux & BSD
FakeGit Campaign Uses 7,600 GitHub Repositories to Spread SmartLoader Malware
Cybersecurity researchers have discovered nearly 7,600 malicious GitHub repositories, out of which more than 800 pose as artificial intelligence (AI) skills or Model Context Protocol (MCP) servers to deliver a malware family known as SmartLoader as part of an ongoing campaign codenamed FakeGit.
"FakeGit uses copied projects, lookalike developer profiles, convincing READMEs, and malicious ZIP
Kategorie: Hacking & Security
FakeGit Campaign Uses 7,600 GitHub Repositories to Spread SmartLoader Malware
Cybersecurity researchers have discovered nearly 7,600 malicious GitHub repositories, out of which more than 800 pose as artificial intelligence (AI) skills or Model Context Protocol (MCP) servers to deliver a malware family known as SmartLoader as part of an ongoing campaign codenamed FakeGit.
"FakeGit uses copied projects, lookalike developer profiles, convincing READMEs, and malicious ZIP Swati Khandelwalhttp://www.blogger.com/profile/[email protected]
Kategorie: Hacking & Security
New HollowGraph malware uses Microsoft Graph for stealthy C2 comms
A malicious component dubbed HollowGraph uses the calendar feature in compromised Microsoft 365 mailboxes as a command-and-control channel to receive attacker commands and exfiltrate stolen data. [...]
Kategorie: Hacking & Security
Zranitelnost ve WordPress Core: CVE-2026-63030 s přezdívkou wp2shell
Vládní CERT upozorňuje (𝕏) na zranitelnost ve WordPress Core: CVE-2026-63030 s přezdívkou wp2shell. Zranitelnost typu vzdálené spuštění kódu (RCE) bez nutnosti autentizace umožňuje útočníkovi spouštět libovolný kód prostřednictvím endpointu WordPress REST API Batch. Ke zneužití není vyžadován platný uživatelský účet ani interakce uživatele. Úspěšné zneužití může vést ke kompletnímu kompromitování webové stránky a souvisejících dat. Zranitelnost postihuje verze WordPress 6.9.0 až 6.9.4 a 7.0.0 až 7.0.1.
Kategorie: GNU/Linux & BSD
Exposed Server Reveals AI-Assisted Phishing Toolkit Behind WebDAV Malware Campaign
A malware operator left its delivery server wide open, and Rapid7 pulled down the whole toolkit: 1,048 files spanning lure templates, filename-spoofing tests, execution experiments, droppers, builder notes, and two campaign chains. One was already live against Windows users in Mexico, delivering an infostealer through a fake government ID-lookup site over WebDAV.
What makes it more than a
Kategorie: Hacking & Security
Exposed Server Reveals AI-Assisted Phishing Toolkit Behind WebDAV Malware Campaign
A malware operator left its delivery server wide open, and Rapid7 pulled down the whole toolkit: 1,048 files spanning lure templates, filename-spoofing tests, execution experiments, droppers, builder notes, and two campaign chains. One was already live against Windows users in Mexico, delivering an infostealer through a fake government ID-lookup site over WebDAV.
What makes it more than a Swati Khandelwalhttp://www.blogger.com/profile/[email protected]
Kategorie: Hacking & Security
Jak dobře vybrat herní notebook. Grafická karta je důležitější než procesor
Věčný souboj „herní notebook nebo stolní počítač“ měl v uplynulých letech jednoduchou odpověď. • Grafické karty pro počítače buď nebyly, nebo stály absurdní částky, takže ideální volbu představoval herní notebook. • Situace se vrací do normálu, ale herní notebooky nadále mají své místo.
Kategorie: IT News
Evropská komise vyměřila AliExpressu pokutu 550 milionů eur
Evropská komise (EK) vyměřila čínskému internetovému prodejci AliExpress pokutu 550 milionů eur (13,3 miliardy korun) za porušení povinností vyplývajících z nařízení o digitálních službách (DSA). Platforma podle EK řádně neposuzovala a neomezovala rizika související s prodejem nelegálních, nebezpečných nebo padělaných výrobků na svém internetovém tržišti. Komise zároveň firmě nařídila přijmout nápravná opatření. Podle AliExpressu je pokuta nepřiměřená.
Kategorie: GNU/Linux & BSD
Šílený i na Hitlerovy poměry. Gigantický tank Ratte byl tak těžký, že by drtil silnice a bořil mosty
Hitler miloval velké a technologicky vyspělé zbraně • . • Mohutné bitevní lodě, nadzvukové rakety a proudová letadla Třetí říše skutečně nasadila. • S gigantickým tankem Landkreuzer P-1000 Ratte se však Adolfova fantazie vydala daleko za hranice možného.
Kategorie: IT News
Gitea 1.27 Delivers 45 Security Fixes for Self-Hosted Git Servers
For organizations that run a self-hosted Git platform, it’s no longer just about hosting static code repositories. Today, Git servers are responsible for deployment pipelines, API tokens, SSH keys, package repositories, and the automation scripts that push code directly. Confirm that the upgrade addresses known vulnerabilities but also provides production environments.
Kategorie: Hacking & Security
Microsoft 365 calendars become spy drop boxes in HOLLOWGRAPH campaign
Microsoft 365 calendars have become the latest hiding place for espionage malware, with attackers stashing commands and stolen files inside appointments dated 24 years into the future. Researchers at Group-IB say they've uncovered a malware component they call HOLLOWGRAPH that swaps the usual command-and-control server for something rather less conspicuous – a compromised Microsoft 365 calendar. Instead of reaching out to attacker-controlled infrastructure for instructions, the implant rummages through calendar events, picks up encrypted tasking, and drops stolen files into new appointments for its operators to collect later. Every event created by HOLLOWGRAPH is dated May 13, 2050, an otherwise empty corner of the diary where encrypted attachments are less likely to attract attention. HOLLOWGRAPH isn't exploiting Microsoft Graph so much as blending into it, wrapping its command-and-control traffic inside legitimate Graph API requests that look just like any other Microsoft 365 application talking to the cloud. The malware itself is relatively lean. Group-IB says it does little more than fetch instructions from one calendar event, stash stolen files in another, and periodically retrieve fresh Entra ID credentials over a DNS tunneling channel so the Graph-based communications keep working. The security firm linked the malware to the Cavern framework with high confidence after finding matching command formats and other implementation details. It also spotted similarities with the Iranian-linked espionage group Lyceum, although it stopped well short of pinning the operation on that crew, saying the connection was supported with only low confidence. "HOLLOWGRAPH represents an advanced and highly targeted espionage threat," Group-IB wrote. "By abusing trusted Microsoft 365 calendars through the Microsoft Graph API and refreshing its cloud authentication credentials through DNS tunneling, the malware conceals its command-and-control within legitimate Microsoft 365 and network traffic, evading conventional perimeter defenses." The campaign itself appears to be narrowly targeted. Group-IB identified 12 infected systems, only three of which communicated with the compromised mailbox during the period it observed. The compromised mailbox used for command-and-control belonged to an Israeli organization, malware samples were uploaded from Israel, and the researchers said the evidence points to a focused espionage operation rather than a broad smash-and-grab. HOLLOWGRAPH doesn't exploit a flaw in Microsoft 365 or Microsoft Graph. Instead, it takes advantage of services that are already trusted inside most organizations, making the activity far less conspicuous than malware calling home to attacker-controlled infrastructure. ®
Kategorie: Viry a Červi
Diablo IV s novou sezónou opakuje staré chyby. Ani dobrý nápad hráče dlouhodobě neudrží
Blizzard vypustil do světa čtrnáctou sezónu Diabla IV, tentokrát pod názvem Season of Death Awakening. Po velmi silné třinácté sezóně, která těžila z expanze Lord of Hatred, měla nová sezóna nelehký úkol - znovu přitáhnout hráče, kteří už začínají být unavení z recyklace mechanik a kosmetických ...
Kategorie: IT News
HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050
A newly discovered espionage implant has been using a hijacked Microsoft 365 calendar as its command channel, planting operator instructions and smuggling out stolen files as attachments on calendar events dated to the year 2050.
Group-IB, which named the malware HollowGraph, says the approach moves tasking and stolen data through legitimate Microsoft Graph API traffic, so the activity looks
Kategorie: Hacking & Security
HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050
A newly discovered espionage implant has been using a hijacked Microsoft 365 calendar as its command channel, planting operator instructions and smuggling out stolen files as attachments on calendar events dated to the year 2050.
Group-IB, which named the malware HollowGraph, says the approach moves tasking and stolen data through legitimate Microsoft Graph API traffic, so the activity looks Swati Khandelwalhttp://www.blogger.com/profile/[email protected]
Kategorie: Hacking & Security
An AI SOC Evaluation Guide for Security Leaders
Choosing an AI SOC platform requires understanding how it will perform in your own environment, not just during an evaluation. Prophet Security shares a practical framework for assessing AI SOC solutions, including how to validate accuracy, operating models, long-term reliability, and production readiness. [...]
Kategorie: Hacking & Security
- « první
- ‹ předchozí
- …
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- …
- následující ›
- poslední »



