All news with #data exfiltration tag

🛡️ Craneware disclosed a cyber incident on July 20 after unauthorized access to parts of its data environment resulted in the exfiltration of a significant volume of file names. The firm said much of the data was non-sensitive or public regulatory material, but admitted some employee, customer and partner records were also accessed. No customer service disruption occurred; regulators in the UK and US have been notified and the company is working to identify affected parties.

🛡️ A new macOS infostealer named CrashStealer impersonates Apple's crash-reporting component to trick users into installing a password-stealing payload. Delivered via a signed, notarized disk image called "Werkbit Setup," the dropper bypasses Gatekeeper and fetches a downloader that installs the C++-based stealer. Once active, it prompts for system credentials and exfiltrates browser-stored logins, crypto wallet access and keychain data, using client-side encryption and anti-analysis techniques.

🛡️ Progress urged ShareFile customers to shut down Windows Storage Zone Controllers amid a credible external threat, temporarily disabling access while investigating; there are no signs of account or data compromise. Other top stories include a critical Zimbra XSS patch, a compromised Jscrambler npm package distributing a multi-platform Rust stealer, and Microsoft detailing the destructive GigaWiper backdoor. Large-scale web shell operations (SHELLSTORM), HalluSquatting attacks against AI assistants, and many actively exploited CVEs round out the week's threats.

🔒 Security researchers discovered that the @injectivelabs/sdk-ts npm package (v1.20.21) was published with malicious code to capture cryptocurrency wallet private keys and mnemonic seed phrases. The compromise stemmed from a hijacked GitHub contributor account with suspicious commits appearing on June 8; the legitimate owner quickly reverted changes and released a clean 1.20.23. The malware activated when wallet-generation or import functions were called and exfiltrated secrets via HTTP POST to a public Injective Labs endpoint, and the tainted package had hundreds of dependent packages and thousands of downloads.

🔒 A new extortion group dubbed Helix uses vishing, device-code phishing, and MFA abuse to access and exfiltrate files from SharePoint environments. Operators impersonate managers via phone calls and spoofed caller IDs to trick employees into granting access, then register authenticators for persistence and bulk-download content. ReliaQuest links Helix tactics and infrastructure to prior groups like ShinyHunters and BlackFile, and recommends disabling device-code authentication and restricting SharePoint to managed devices.

🔒 This ThreatsDay roundup highlights a series of recent, pragmatic security incidents and research findings that stem from routine administrative mistakes and small configuration errors. It covers a multinational fraud takedown, malicious typosquatting of payment SDKs, novel code-injection techniques, and a critical unauthenticated ArcGIS Server flaw. The report also outlines ransomware tool overlaps, data-exfiltration concerns in Claude Code, social engineering campaigns abusing Teams and Meta, and multiple kernel and driver vulnerabilities.

🔒 AssuranceAmerica disclosed a data breach impacting 6,998,886 individuals after detecting suspicious activity on March 17, 2026. The incident began with a targeted attack on an employee that allowed unauthorized access and copying of data files. Stolen records include names, contact details, policy and claims information, driver and vehicle data, and driver's license numbers. The insurer has disabled compromised credentials, isolated affected systems, notified law enforcement, and strengthened security controls.

🔒 Accenture has acknowledged an isolated security breach after a threat actor claimed to have stolen 35 GB of source code and related data and tried to sell it on a cybercrime forum. The company said it has remediated the issue and that there is no impact to Accenture operations or service delivery. The attacker, operating as "888," posted claims of exfiltrated source code, keys, tokens, and configuration files and shared a screenshot of an Azure DevOps repository clone. Accenture did not confirm the extent of the accessed data, how access occurred, or whether customer data was affected.

🛡️ Seqrite Labs uncovered a targeted multi-stage phishing operation, dubbed Operation DragonReturn, impersonating India's Income Tax Department to deliver a remote access trojan. First observed on May 18, 2026, the campaign uses carefully crafted bilingual lures, malicious PDF attachments, and a ZIP-based DLL side-loading chain to install persistence and exfiltrate sensitive financial and credential data. The activity shows links to China-hosted infrastructure and overlaps with known tax-themed threat groups.

🖥️ Researchers at Shandong University demonstrated TrojPix, a novel covert channel that modulates otherwise imperceptible on-screen pixels so the video cable emits a faint radio signal a nearby receiver can decode. The technique requires only user-level malware that can draw to the screen and achieved a peak throughput of 8.1 Mbps and a laboratory range reported up to 208 meters. TrojPix works without hardware changes, can hide transmissions under normal-looking content or a fake powered-off display, and was tested across multiple monitor brands and cable types.

🛡️ Researchers discovered a flaw in the gaming-focused Opera GX browser that allowed malicious websites to silently auto-install a GX Mod (a .crx look-and-feel package) and use its CSS to extract specific data from pages a victim visited. In a proof of concept, the team reconstructed a signed-in user's full Gmail address from a single visit, with no clicks required. Opera patched the issue in Opera GX version 130.0.5847.89, labeled the bug P1, paid the $5,000 maximum bounty, and reported no evidence of in-the-wild exploitation. There was no practical workaround prior to the patch.

🛡️ Cybersecurity researchers uncovered a modular malware framework dubbed Avalon that uses a multi-stage phishing chain to bypass traditional defenses and deploy a ransomware component called CrownX. The campaign begins with a spoofed legal-document email pointing victims to a password-protected Proton Drive archive containing an ISO image. Interaction with a malicious Windows Shortcut inside the mounted image triggers an MSBuild-led loader that disables ETW, fetches additional payloads, and ultimately launches Avalon. The framework includes credential harvesting, crypto-wallet theft, lateral movement, data exfiltration, recovery disruption, anti-forensics, and disk tampering capabilities.

🛡️ Aflac Japan disclosed a data breach after an unauthorized third party accessed systems between June 15 and June 25. The company reported that impacted files may include policy and coverage details, personal data, and bank account information, and said US systems were not affected. Some customer services were taken offline while calls and other channels continue to support claims. Authorities have been notified and no misuse has yet been confirmed.

🔒 Tata Electronics confirmed a cybersecurity incident that affected parts of its IT infrastructure but said operations continued normally and remained unaffected. The company said response protocols were deployed immediately after detection. The disclosure responds to claims by the World Leaks group, which posted directories and documents allegedly containing manufacturing data for Apple products. BleepingComputer has contacted Apple for comment about potential exposure of proprietary data.

🔒 This post outlines an architecture and controls for preventing data exfiltration from AWS environments by combining centralized network inspection, DNS filtering, and data perimeter policies. It explains a hub-and-spoke pattern using Transit Gateway, AWS Network Firewall, and Route 53 Resolver DNS Firewall to inspect and block unauthorized outbound traffic, including scenarios involving compromised workloads and agentic AI. The article details layered preventive, detective, and corrective measures using AWS services such as GuardDuty, Security Hub, IAM Access Analyzer, EventBridge, and Firewall Manager to automate detection and response.

🔒 Klue confirmed an incident on June 12 in which attackers used a compromised legacy credential to obtain OAuth tokens connecting Klue to third-party platforms, including Salesforce. The company says customer content stored in Klue was not impacted and that the breach was limited to integrations; affected credentials and tokens were revoked and CrowdStrike engaged. Cybersecurity firms ReliaQuest and Huntress reported extensive Salesforce data exfiltration, and the Icarus extortion group has publicly claimed responsibility.

🔒 A proof-of-concept called SearchLeak demonstrated a prompt injection attack against Microsoft M365 Copilot Enterprise that tricks users into clicking crafted links to exfiltrate corporate data. Researchers combined three weaknesses in Copilot Search — including URL query parameters treated as natural language prompts — to leak sensitive content. Microsoft patched the server-side flaw, but the incident highlights risks when AI services access broad corporate assets and the need for render-time sanitization and stricter CSPs.

🔍 New research from CloudSEK reveals Operation Escaneo, a coordinated campaign targeting government and financial entities across Latin America after attackers left a staging server exposed. The group exploited internet-facing appliances and known vulnerabilities in Fortinet and Ivanti devices, plus Apache Tomcat, Windows, and Log4Shell flaws. Attackers used custom reconnaissance (Kimera), webshells, reverse tunnels and a compromised Cisco router to exfiltrate large volumes of sensitive data.

🛡️ New research from Group-IB describes the GitBait campaign, a multi-year phishing operation targeting Mexican banks that used GitHub Pages for hosting and SheetBest to exfiltrate credentials into Google Sheets. The operation relied on modular phishing kits, automated publishing, and crafted Open Graph tags to spread links via messaging apps while evading search indexing. Group-IB reported over 100 GitHub-hosted domains and urges banks to monitor brand abuse and suspicious traffic to cloud services.

🛡️ A coordinated campaign on the JetBrains Marketplace used at least 15 malicious IDE plugins to exfiltrate developers' AI provider API keys. Discovered by Aikido Security, the plugins—posing as AI assistants, code-review tools, and Git utilities—sent keys to a hardcoded server when users clicked "Apply" after entering credentials. Published from October 2025 through June 2026, these plugins were installed nearly 70,000 times and remain available on the Marketplace at the time of reporting.