Largest crypto exchange in Brazil confirms cyberattack as millions flow out of platform
Blockchain security companies said more than $46 million left the Mercado Bitcoin platform.
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Polymarket pledges to give $3.9 million back to victims after site compromise
In a post-mortem on an October 29 incident, prediction market Polymarket said it will pay people back what they lost, as well as compensate them for the site's downtime.
2nd November – Threat Intelligence Report
For the latest discoveries in cyber research for the week of 2nd November, please download our Threat Intelligence Bulletin. TOP ATTACKS AND BREACHES Binance, a global cryptocurrency exchange, has suffered a cyberattack resulting in the theft of approximately $6.3 billion in digital assets. Attackers reportedly compromised a DevOps engineer’s laptop and abused internal wallet infrastructure to authorize unauthorized withdrawals. The incident ranks among the largest cryptocurrency thefts ever…
KEV ✓ EPSS 0.83 CVSS 9.8 CVE-2026-111497 CVE-2026-118539 CVE-2026-76418 CVE-2026-98432 Linux Cisco Drupal Microsoft finance doprava školství obrana IL
BTCPay Server warns of hot wallet thefts targeting outdated instances
The maintainer of BTCPay Server, an open-source cryptocurrency payment processor, has urged users to install the latest version as hackers have been draining "hot wallets" on instances running older versions. [...]
The Rise of LLMJacking: How Threat Actors Monetize Compromised Cloud and Model Resources
Written by: Christopher Romano, Codi Starks, Garrett Mahoney, John Wolfram, Josh Murchie, K Singh, Mathew Potaczek, Mike Lombardi, Rik Dolfing Introduction Mandiant responded to multiple incidents in 2026 in which threat actors hijacked enterprise access to Large Language Models (LLMs), a tactic known as "LLMJacking." Spanning a variety of cloud and LLM providers, these intrusions impacted organizations in North America, South America, and Asia Pacific across the financial services, retail,…
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FBI blames N. Korea’s TraderTraitor for Binance theft, urges crypto industry to block transactions
The FBI and U.S. Secret Service alleged this weekend that North Korean hackers were responsible for stealing more than $6.3 billion from cryptocurrency platform Binance last week.
FBI links $6.3 billion Binance crypto heist to North Korean hackers
The FBI has confirmed that North Korean state-sponsored hackers known as TraderTraitor were behind the $6.3 billion crypto-theft attack on Binance, making it the largest cryptocurrency heist on record. [...]
Binance hack: how a compromised developer laptop can lead to a $6.3 billion breach
The Binance hack may have started with a compromised developer laptop, Binance says. See how that can lead to stolen funds and how to protect against it. Category: News
Binance hit by largest-ever crypto theft, with $6.3 billion stolen
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Binance links $6.3 billion crypto theft to compromised DevOps laptop
Binance, the world's largest crypto exchange, has linked the theft of about $6.3 billion in cryptocurrency to a DevOps engineer's compromised laptop. [...]
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Binance hit by record $6.3 billion crypto hack, scrambles to freeze funds
Binance, the world's largest cryptocurrency exchange, confirmed Thursday that it had been hacked in a $6.3 billion cyber heist that blockchain investigators are blaming on North Korea.
Binance probes potential $5.8 billion crypto-theft hack
Cryptocurrency exchange Binance is investigating a potential security breach involving up to $5.8 billion in digital assets, in what could become the largest cryptocurrency hack in history. [...]
Polymarket halts trading after crypto-draining script breach, $2.5M traced
Prediction market platform Polymarket temporarily suspended trading on Thursday after hackers compromised a third-party service to distribute cryptocurrency-draining JavaScript, with approximately $2.5 million in assets traced to a suspected attacker wallet. [...]
Fake crypto app on Apple App Store linked to $23K wallet theft
A fake cryptocurrency trading app called Padre Terminal, previously available on the Apple App Store for iOS devices, has been linked to the theft of approximately $23,000 from 27 Solana wallets. [...]
Tracking AI adoption in North Korean threat actor tradecraft
In this article Stages of AI adoption by North Korean threat actors AI use across North Korean threat operations AI-assisted targeting and reconnaissance AI-assisted social engineering and identity deception AI-assisted software and tooling development AI-assisted operational scaling and analysis Mitigation and protection guidance Microsoft Defender detections As Microsoft Threat Intelligence continues to track how threat actors operationalize AI to increase the speed, efficiency, and…
Malicious Firefox extensions impersonate popular crypto wallets
Socket’s threat researchers found three malicious Firefox extensions that impersonated the Phantom, Jupiter, and Bitget crypto wallets. Once installed, the malicious extensions stole recovery phrases and private keys, which would provide the attacker with full control of a wallet. A crypto wallet is an app, browser extension, or physical device that lets you manage cryptocurrency such as Bitcoin. Despite its name, it doesn’t actually hold your coins. Those are recorded on a blockchain, a shared…
False Protection, Emptied Accounts: The Seven Android Trojan Families Targeting Indian Banking Apps
This technical analysis details a sophisticated Android malware campaign targeting the Indian banking sector. The report examines seven distinct trojan families that facilitate banking fraud through coordinated phishing, credential theft, and unauthorized cryptojacking. Group-IB provides an in-depth breakdown of the attack chain, malware capabilities, and the infrastructure used to compromise mobile devices.
finance SG
Nigerian national given 8-year sentence for tax business hacks
A Nigerian national who worked with a group to hack tax prep businesses and conduct millions of dollars in fraud using customer data was sentenced this week.
finance US
Hacker gets 8 years for stealing $3.3 million from taxpayers
A Nigerian national was sentenced to eight years in prison for his involvement in a series of spearphishing attacks targeting US tax preparation businesses since 2019. [...]
finance US
The Checker You Pay For
How criminals turn spend-management onboarding into fraud infrastructure, and why you may be accountable for the fraud you never see.
finance SG
Inside the Underground Market for Know Your Client Services
Cybercriminals are selling forged identity documents, deepfake videos, and live verification services to help buyers bypass Know Your Client (KYC) checks. Flare examines how these underground services operate and the techniques used to create and maintain fraudulent verified accounts. [...]
finance US
Upozorenje: Lažne SMS poruke o povratu poreza
Nacionalni CERT upozorava građane na phishing kampanju putem SMS poruka u kojima se napadači predstavljaju kao Porezna uprava i obavještavaju primatelje da im je odobren povrat poreza. Cilj kampanje je navesti građane na odavanje osobnih i financijskih podataka, koji se potom mogu zloupotrijebiti za financijske prijevare. U poruci se nalazi poveznica koja vodi na lažnu internetsku stranicu. Od građana se najprije traži unos imena i prezimena, IBAN-a, broja mobitela i datuma rođenja, a zatim i…
The hidden network: Inside the phishing infrastructure ecosystem powering global cybercrime
In this article Uncovering the shadow world of a phishing kit ecosystem Storm-3119: YAM Store, the power broker Storm-2990: The Iron Man System phishing kit Downstream activity from Storm-2990 phishing kits Mitigation and protection guidance Microsoft Defender detections Over the past year, Microsoft uncovered a Chinese-language cybercriminal ecosystem, an interconnected network of phishing kit operators, developers, and an illicit marketplace selling tools and infrastructure for large-scale…
Hirudo Android malware replaces banking apps to evade security checks
A new Android malware called Hirudo steals bank account credentials by replacing legitimate banking apps with modified versions that disable security checks. [...]
finance US
Ledger says hardware implant in cryptocurrency wallets stole recovery phrases
Ledger cryptocurrency wallets sold through a Southeast Asian reseller had an implant allowing outsiders to drain funds, the company said.
Ledger confirms hardware wallet spy implant behind crypto thefts
Ledger has confirmed that some of its devices distributed through Southeast Asian reseller CryptoBilis were compromised with a hardware implant that drained users' cryptocurrency wallets. [...]
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Auditing the auditor: Unmasking Apex Accelerator
Elastic Security Labs identified a malicious npm package, @apexacc/cli, which led us to an operation posing as a Web3 accelerator. That operation had spent months building a public presence, targeting cryptocurrency start-ups and founders with offers of free AI credits and coding tools, along with security audits. The group also advertised an in-person event through a dedicated invitation page, adding to its efforts to appear legitimate. The tools delivered information-stealing malware and…
Man admits to running network of 15,000 money mules for cybercriminals
A Ukrainian-Russian dual citizen has pleaded guilty to running a massive money laundering operation that laundered millions for cybercriminals worldwide. [...]
finance US
Uranium crypto exchange hacker convicted for stealing $53 million
A Maryland man was found guilty of stealing more than $53 million after hacking the decentralized crypto exchange Uranium Finance twice in April 2021. [...]
Alleged dev of Ploutus ATM malware appears in US court after arrest
The U.S. Department of Justice has announced the arrest of the alleged developer of Ploutus malware, used to steal millions of dollars in ATM jackpotting attacks across the United States. [...]
finance US
US sanctions Tren de Aragua gang members in ATM hacks crackdown
The U.S. Treasury Department has sanctioned eight members of the Venezuelan gang Tren de Aragua (TdA) for their role in the theft of millions of dollars in ATM jackpotting attacks across the United States. [...]
finance US
Fake xStocks, Pendle, and other sites bait crypto users with rewards votes
We found 70 websites that impersonate legitimate crypto projects that invite visitors to vote on the date of an upcoming rewards distribution. The pages copy the look of the real sites closely, and on most of them the offer is small and believable: Cast a vote, and as an active voter you get a 1.25x boost when the rewards are paid out. However, the vote is fake and clicking the Vote now button opens a wallet connection prompt. It’s the first step toward requests that could trick visitors into…
finance US
US sanctions 10 over ATM malware scheme tied to Tren de Aragua
Treasury’s Office of Foreign Assets Control (OFAC) targeted multiple Venezuelan nationals and several companies they control that are part of the effort to launder the money stolen from dozens of ATMs.
finance US
Bitget hacked via zero-day in third-party security products
Cryptocurrency exchange Bitget revealed today that attackers who stole $387.5 million last week breached its systems after exploiting a zero-day flaw in third-party security products. [...]
finance US
Bitget resumes Bitcoin withdrawals after $387.5 million crypto heist
Cryptocurrency exchange Bitget has resumed Bitcoin withdrawals suspended after suspected North Korean hackers breached its systems last week and stole over $350 million. [...]
Crypto CEO accuses North Korea of stealing $387 million from Bitget platform
The CEO said the company has a User Protection Fund that has over $464 million and those funds will be used to cover the losses.
finance US
Hackers steal $351.6 million in Bitget crypto exchange hack
Cryptocurrency exchange Bitget disclosed today that suspected North Korean hackers have stolen $351.6 million from its hot and warm wallets. [...]
New RemControl Android banking malware targets users in Europe and Canada
A new Android malware-as-a-service (MaaS) platform called RemControl is targeting users through malvertising campaigns that impersonate the TVTap IPTV application. [...]
finance US
RemControl: AI Built the Overlays. Victims Lose their PINs
Group-IB uncovers RemControl, a new Android banking trojan targeting European, Middle Eastern and Canadian banks, whose criminal infrastructure was unknowingly built by AI.
finance SG
New Android malware uses AI to steal bank logins and PINs
Researchers at Zimperium’s zLabs have analyzed an Android Trojan that uses an automated, multi-stage infection process. What’s new is that RatHat gives a live AI assistant the keys to the accessibility tree of the infected device and uses it to determine where to tap or scroll, rather than following a hardcoded script. The variable attack path makes it harder for signature- and rule-based mobile security tools to detect this Trojan. It also abuses Android Debug Bridge (ADB), a legitimate tool…
Revolut phishing texts appear days after data breach
Only days after Revolut acknowledged that it disclosed sensitive customer records to an unauthorized party, affected customers are receiving phishing texts. However, we don’t know yet if the phishing texts are linked to the breach. The company had accepted fraudulent information requests sent from an email address on a legitimate government agency domain. Through this social engineering attack, rather than by gaining access to Revolut’s systems, the criminals obtained the following types of…
Top 5 Fraud Prevention Platforms for Banks and Fintechs in 2026
Most fraud platforms only see a threat once it becomes a transaction. This guide compares the top 5 fraud prevention platforms for banks and fintechs in 2026, including Group-IB, Feedzai, Sift, DataVisor, and Kount, and what actually separates them.
finance SG
Malware bypasses browser checks to force install Chrome, Edge extensions
A banking malware operation active since mid-2025 has been using a toolkit named KREMLIN to install malicious Chrome and Edge extensions that steal credentials, session tokens, and sensitive data. [...]
finance US
Suspected Black Axe gang leaders face cybercrime charges in the US
Five alleged leaders of the Black Axe cybercrime syndicate, known for its involvement in global-scale cyber-enabled financial fraud, have been extradited to the United States to face wire fraud and money laundering charges. [...]
finance US
Revolut handed customer data to fraudsters using government email account
British fintech Revolut confirmed disclosing sensitive customer data to fraudsters who submitted emergency data requests from a legitimate government email account.
Revolut gave customer IDs and financial data to a government impostor
Revolut has acknowledged that it disclosed sensitive customer records to an unauthorized party. The company had accepted fraudulent information requests sent from an email address on a legitimate government agency domain, according to TechCrunch. Revolut is a London-based banking and financial platform with more than 80 million customers globally, according to the company. Revolut describes this as an external impersonation scam, not an intrusion into its systems. It also says customer funds…
The extension you never installed: KREMLIN forges Chrome's own integrity checks to steal banking sessions
Elastic Security Labs has tracked REF9334, a Brazilian banking malware operation, since May 2025. Its toolkit is called KREMLIN (as named by the malware author, Kr3mlin4rt1st), though nothing about the operation is Russian. Lures impersonate twelve Brazilian banks; error messages and code comments are written in Portuguese, and the operators' Ethereum transactions cluster during São Paulo working hours. Over 15 months and seven campaigns, they built a malicious browser extension that installs…
Crypto customers targeted by scammers after email marketing provider breach
An attacker breached an email marketing platform and launched targeted attacks against the newsletter subscribers of some of its customers, especially those working in cryptocurrency and adjacent fields. The incident was a supply-chain phishing campaign carried out through Brevo, an email marketing provider used by several cryptocurrency companies and other firms. Brevo initially said an attacker had gained access to 120 customer accounts, some of which were used to send phishing emails to the…
Android malware creates a hidden copy of your banking app
Researchers at Group-IB found that the Android banking Trojan Gigabud can create a separate work profile on an infected phone and run a cloned banking app inside it. The attacker can then carry out fraudulent transactions in the new profile, potentially separating them from signs of malware detected elsewhere on the device. To do this, Gigabud installs Vwork, a malicious version of the legitimate open-source tool Shelter. Shelter normally lets Android users isolate apps or run second copies of…
finance US
Treasury urges banks to file cyber scam reports, noting nearly $13 billion in losses since 2023
As the cyber scam industry expands globally, the U.S. government wants banks to share more information about what's happening to their customers.
Casbaneiro: A Banking Trojan with Distributed Data-Receiving Servers
FortiGuard Labs examines how a new Casbaneiro campaign targeting Latin America uses geofencing and distributed servers to evade analysis and detection
finance US
Vwork: Weaponized Open-source Software as an Addon for Gigabud
How the Gigabud Android banking trojan abuses Shelter, an open-source app cloner, and what that means for banks, users, and defenders.
finance SG
Russian suspect in bank account takeovers is extradited to US
A Russian web developer who played a role in a multimillion-dollar bank account takeover scheme has been extradited to the U.S. to face an indictment.
finance US
‘White hat’ hackers take $47 million bounty after $320 million crypto theft
Public negotiations between hackers and the operators of the Liquid Network crypto platform ended with the attackers sending back most — but not all — of what they took.
Five Venezuelans plead guilty to ATM jackpotting attacks in US
Five Venezuelan nationals pleaded guilty to attempting to empty automated teller machines (ATMs) using malware in a series of ATM jackpotting attacks. [...]
finance US
Financially Motivated Threat Actor BREEZE COMET Targets Brazil
Introduction Beginning in 2024 Mandiant investigated a string of compromises affecting Brazilian financial services, retail, and eCommerce organizations. Google Threat Intelligence Group (GTIG) tracks this activity as BREEZE COMET (formerly UNC5669), a financially motivated threat actor specializing in manipulating payment systems and banking software in Brazil to conduct fraudulent transfers. This activity overlaps with operations publicly reported as Plump Spider and SHADOW-AETHER-064. In…
Cronos blockchain restarts after $74 million Tectonic exploit
The Cronos blockchain network has resumed trading activity after a price-manipulation attack on the Tectonic cryptocurrency lending platform allowed an attacker to borrow $74 million. [...]
Five plead guilty in latest federal ATM jackpotting case
Federal law enforcement continued to warn about ATM jackpotting gangs as it announced guilty pleas from five Venezuelan nationals.
finance US
Fraudsters steal $6 million from Tectonic crypto platform after inflating token price
At least $6 million was stolen from crypto platform Tectonic after an attacker manipulated the price of the Tonic coin over the weekend.
Balonx Sistema: El Rostro Detrás del PhaaS que Impacta la Banca Mexicana
Group-IB expone una operación mexicana de PhaaS dirigida a más de 20 instituciones financieras, con capacidades de phishing en tiempo real, vishing con IA y RAT para dispositivos móviles.
finance SG