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"Poland shifts away from signal following cyberattacks on officials' accounts."
Views expressed in this cybersecurity, cyber crime update are those of the reporters and correspondents. Accessed on 19 May 2026, 1533 UTC.
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Russ Roberts (https://www.hawaiicybersecurityjournal.net).
138
Yesterday
8 TTPs
by Pierluigi Paganini / 6h
Poland told officials to stop using the popular instant messaging app Signal after cyberattacks targeted government accounts. Poland has instructed government officials to stop using Signal for sensitive communications and move to a state-developed alternative. The decision follows repeated cyberattacks targeting Signal accounts belonging to politicians, military personnel, and public servants. O
INTERPOL led Operation Ramz in MENA, resulting in 201 arrests and 382 suspects tied to cybercrime networks. INTERPOL coordinated Operation Ramz across the Middle East and North Africa, leading to 201 arrests and identifying 382 additional suspects. ” A first-of-its-kind cybercrime operation in the MENA region has led to the arrest of 201 individuals, with a further 382 suspects identified.” reads
Shai-Hulud worm copycats are already attacking NPM developers after its source code leaked, enabling fast supply chain exploitation. The first copycats of the Shai-Hulud worm have already started showing up online, only a few days after the malware’s source code was dumped on GitHub. Researchers had warned this would happen almost immediately, and they were right. According to cybersecurity firm
Grafana confirmed a GitHub token breach that exposed source code, but said no customer data or systems were affected. Grafana Labs confirmed a security incident after the extortion group Coinbase Cartel listed it on a leak site and claimed data theft on May 15. The breach was triggered by a compromised token that gave attackers access to the company’s GitHub environment. Grafana Labs is a softwar
7-Eleven confirmed a breach after ShinyHunters claimed theft of over 600,000 Salesforce records and franchisee data. 7-Eleven has confirmed a data breach after the ShinyHunters hacking group claimed it stole more than 600,000 Salesforce records containing personal and corporate information. “Over 600k Salesforce records containing PII and other internal corporate data have been compromised.” The
A hotel check-in system exposed over 1 million passports, IDs, and selfies online due to a misconfigured cloud storage bucket. A security lapse in the Reqrea’s Tabiq hotel check-in system exposed over 1 million passports, driver’s licenses, and selfie verification photos online. The issue came from a misconfigured Amazon cloud storage bucket that was left publicly accessible. As a result, anyone
May 17, 2026
2 TTPs
by Pierluigi Paganini / 1d
MiniPlasma: a Windows SYSTEM privilege escalation believed patched in 2020 (CVE-2020-17103) is still fully working on every patched Windows 11. Once again, security researcher Chaotic Eclipse has released a proof-of-concept exploit for a new Windows privilege escalation zero-day called MiniPlasma, which can grant attackers SYSTEM privileges on fully patched systems. The flaw affects “cldflt.sys,”
A critical NGINX flaw (CVE-2026-42945) is actively exploited, allowing crashes or possible code execution via malicious HTTP requests. A critical vulnerability in NGINX Plus and NGINX Open, tracked as CVE-2026-42945 (CVSS v4 score of 9.2), is already being actively exploited shortly after disclosure. “We’re seeing active exploitation of CVE-2026-42945 in F5 NGINX, a heap buffer overflow affecting
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter JDownloader site hacked to replace installers with Python RAT malware New TrickMo Variant: Device Take Over malware targeting Banking, Fintech, Wallet & Auth apps Threat Actor Mr_Rot13 Actively Exploits CVE-2026-41940 for Backdoor Deployment Oper
by Pierluigi Paganini / 2d
A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Attackers exploit Funnel Builder bug to inject e-skimmers into e-stores Pwn2Own Berlin 2026, Day Three: DEVCORE Crowned Master of Pwn, $1.298 Millio
Attackers are exploiting a critical flaw in the WordPress Funnel Builder plugin to inject skimming code into WooCommerce checkout pages. A critical vulnerability in the WordPress Funnel Builder plugin is being actively exploited to inject malicious JavaScript into WooCommerce checkout pages, according to Sansec researchers . Funnel Builder by FunnelKit is a checkout and upsell plugin installed on
May 16, 2026
3 TTPs
by Pierluigi Paganini / 2d
Pwn2Own Berlin 2026 ended with 47 zero-days and $1.29M in payouts, as DEVCORE dominated the competition across all categories. Pwn2Own Berlin 2026 ended after three intense days, with participants discovering 47 unique zero-days, and earning $1,298,250 in total payouts. Pwn2Own Berlin 2026 wrapped up at OffensiveCon on Saturday with a final day that sealed DEVCORE’s dominance across every metric
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Microsoft Exchange Server to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Microsoft Exchange Server, tracked as CVE-2026-42897 (CVSS score of 8.1), to its Known Exploited Vulnerabilities (KEV) catalog . This week, Microsoft warned that th
Russia-linked APT group Turla turned its Kazuar malware into a stealthy P2P botnet for long-term access to compromised systems. Russia-linked APT group Turla upgraded its Kazuar backdoor into a modular peer-to-peer botnet designed for stealth and persistent access to infected systems. Microsoft researchers say the malware allows attackers to maintain long-term control while making detection and d
OpenAI said the TanStack supply chain attack compromised two employee devices and exposed credentials from code repositories. OpenAI confirmed that the recent TanStack supply chain attack compromised two employee devices and exposed credential material stored in internal source code repositories. The incident began after the TeamPCP hacking group abused weaknesses in the package publishing proces
May 15, 2026
4 TTPs
by Pierluigi Paganini / 3d
Day two of Pwn2Own Berlin 2026 saw $385,750 earned for 15 zero-days, bringing the total to $908,750 and 39 vulnerabilities over two days. During the second day of Pwn2Own Berlin 2026, security researchers earned $385,750 after successfully demonstrating 15 unique zero-day vulnerabilities affecting products such as Windows 11, Microsoft Exchange, and Red Hat Enterprise Linux for Workstations. Comb
Microsoft warned that attackers are exploiting a new Exchange Server zero-day vulnerability, tracked as CVE-2026-42897, in the wild. Microsoft warned that threat actors are actively exploiting a new Exchange Server zero-day vulnerability tracked as CVE-2026-42897 (CVSS score 8.1). The vulnerability is an improper neutralization of input during web page generation (‘cross-site scripting’) in Micro
ESET uncovered new Ghostwriter (aka FrostyNeighbor) activity targeting Ukrainian government organizations in a campaign active since March 2026. ESET researchers published a new report documenting fresh activity attributed to the APT group FrostyNeighbor, aka Ghostwriter , active since at least March 2026, targeting Ukrainian governmental organizations. The campaign is similar to previous FrostyN
May 14, 2026
Privilege Escalation (Enterprise TA0004)
by Pierluigi Paganini / 4d
Researchers disclosed two new Windows zero-days named YellowKey and GreenPlasma affecting BitLocker and the CTFMON framework. A security researcher known as Chaotic Eclipse , also called Nightmare-Eclipse, disclosed two new Windows zero-day vulnerabilities named YellowKey and GreenPlasma . The flaws affect BitLocker and the Windows Collaborative Translation Framework (CTFMON). YellowKey could all
Pwn2Own Berlin 2026 day one saw 22 entries and 24 zero-days across major software, with researchers earning $523,000 in total rewards. Day one of Pwn2Own Berlin 2026 featured 22 entries targeting widely used technologies, including browsers, operating systems, AI platforms, and NVIDIA infrastructure. By the end of the day, researchers demonstrated 24 unique zero-day vulnerabilities and earned a t
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Cisco Catalyst SD-WAN to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Cisco Catalyst SD-WAN, tracked as CVE-2026-20182 (CVSS score of 10.0), to its Known Exploited Vulnerabilities (KEV) catalog . Cisco fixed CVE-2026-20182, a flaw in SD-W
Fragnesia, a new Linux kernel flaw tracked as CVE-2026-46300, could let local attackers gain root access through page cache corruption. Researchers disclosed a new Linux kernel privilege escalation vulnerability named Fragnesia , tracked as CVE-2026-46300 (CVSS score of 7.8). The flaw affects the XFRM ESP-in-TCP subsystem and could allow local attackers to gain full root access by corrupting the
Broadcom patched a high-severity VMware Fusion flaw, CVE-2026-41702, that could let local attackers gain root privileges. Broadcom released a security update for VMware Fusion to address a high-severity vulnerability, tracked as CVE-2026-41702, that could allow local attackers to escalate privileges to root on affected systems. The flaw is a time-of-check time-of-use (TOCTOU) vulnerability affect
Researchers found a critical 18-year-old buffer overflow flaw in NGINX, tracked as CVE-2026-42945 and named NGINX Rift. If you run NGINX, and statistically speaking, there is a very good chance you do, this week brought news worth stopping for. Security researchers at depthfirst disclosed a critical heap buffer overflow vulnerability in both NGINX Plus and NGINX Open Source that has been sitting
May 13, 2026
IoC > 2 domains
by Pierluigi Paganini / 5d
•23 TTPs
Chinese-linked FamousSparrow repeatedly targeted an Azerbaijani oil and gas company, reusing the same entry point in three intrusions from Dec 2025 to Feb 2026. Chinese-linked threat actor FamousSparrow has conducted a sustained intrusion campaign against an Azerbaijani oil and gas company, returning to the same compromised entry point three separate times between late December 2025 and late Febr
Foxconn confirmed a cyberattack on some North American factories. The Nitrogen ransomware group claims it stole 8TB of data from the firm. Foxconn confirmed that several of its North American factories were affected by a cyberattack. The manufacturer confirmed it was targeted by threat actors after the Nitrogen ransomware group listed it on its Tor data leak site on March 12. The Nitrogen ransomw
Microsoft’s May 2026 Patch Tuesday fixed 138 flaws, including 30 critical bugs, across Windows, Office, Azure, Edge, SQL Server, and more. Microsoft’s May 2026 Patch Tuesday patched 138 vulnerabilities in a single release. That is a number that gives pause even for people accustomed to these cycles. The affected products span virtually the entire Microsoft portfolio: Windows and its components, O
In January 2026, telehealth infrastructure firm OpenLoop Health suffered a security breach that exposed information of 716,000 people. OpenLoop Health confirmed a January 2026 cyberattack that exposed personal information of 716,000 individuals using its telehealth services. The breach was reported to authorities in March, but the full scope was only recently determined. Threat actors exfiltrated
7 TTPs
by Pierluigi Paganini / 6d
CVE-2025-32975 is a critical flaw in Quest KACE SMA used for endpoint management. If exploited, it could impact all managed systems across organizations. CVE-2025-32975 is a critical flaw in Quest KACE SMA used for endpoint management. If exploited, it could impact all managed systems across organizations. Quest KACE SMA is an on-premises endpoint management platform for software deployment, patc
7 TTPs
by Pierluigi Paganini / 6d
Educational tech firm Instructure reached a deal with hackers after a major Canvas breach exposed data stolen from schools and universities. Educational tech firm Instructure says it reached an agreement with the cybercrime group behind a major Canvas data
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