Kloeckner Metals Corporation Discovers Data Breach Exposing Names and Social Security Numbers

Biggest Cyber Attacks, Data Breaches, Ransomware Attacks of March 2026 March 2026 didn’t just add more names to the growing list of breached organisations, it exposed how deeply embedded cyber risk has become across critical business functions. From healthcare and education to manufacturing and digital services, incidents involving Catalyst RCM , University of Hawaii , Stryker , Michelin , and LexisNexis show how attackers are increasingly targeting the systems that organisations rely on to operate, not just the data they store. Vulnerabilities Discovered and Patches Released Advisories issued, reports, analysis etc. in March 2026 A clear pattern e m er ges across breaches at Telus Digital , Cognizant ’s Intuitive platform, TriZetto , Navia , and CIBM : attackers are exploiting inter-dependencies . Whether through third-party vendors, shared platforms, or supply chain integrations, a single point of compromise can ripple across multiple organisations. These incidents are no longer isolated security failures. They are operational disruptions with far-reaching consequences , impacting customers, partners, and in some cases, essential services. At Cyber Management Alliance, we work with organisations to prepare for exactly these kinds of scenarios. Through cyber incident response training , cyber tabletop exercises , and playbook development, we help teams build the muscle memory needed to respond effectively under pressure. Because in today’s environment, resilience isn’t just about stopping attacks. It’s about ensuring your organisation can continue to function when systems, suppliers, or services are disrupted. Paint maker giant AkzoNobel confirms cyber attack on U.S. site AkzoNobel confirmed that hackers breached the network of one of its U.S. sites and stole large amounts of internal data, with samples of the stolen files later leaked online, though the company said the incident was contained and the overall impact remained limited. England Hockey investigating ransomware data breach England Hockey investigated a cyber attack after a ransomware gang claimed it breached the organization’s network and stole around 129 GB of internal data, threatening to leak the files unless a ransom was paid. Ransomware gang stole data of 672,000 people in 2025 cyber attack A ransomware attack on fintech firm Marquis led to the theft of sensitive personal and financial data—such as Social Security numbers, account details, and contact information—impacting approximately 672,000 individuals across multiple banks and credit unions. Russian botnet operator linked to major ransomware attacks sentenced in US Ilya Angelov, a Russian National, helped operate a botnet used by ransomware gangs The botnet operation enabled ransomware gangs to breach corporate systems and carry out attacks against dozens of U.S. companies, leading to widespread network compromises and significant financial extortion losses. Ransomware: Catholic school closed for days after cyber attack The ransomware attack forced the school to shut down operations for four days after its network was compromised, causing significant disruption to classes and administrative activities. Stats SA confirms data breach, hackers demand ransom The attack led to the theft of over 150GB of data from a human resources system, with hackers demanding ransom to prevent the release of hundreds of thousands of sensitive records, raising serious risks of data exposure and misuse. Suspected ShinyHunters’ vishing attack hits Ad Tech firm Optimizely, leaking business information Ad tech company Optimizely experienced a phishing-based intrusion where attackers accessed some internal systems and stole limited business contact information from CRM and internal documents, though sensitive customer data was not compromised and operations continued normally. Pathstone Family Office breached; records stolen Hackers claimed to have breached Pathstone Family Office and stolen around 641,000 records containing sensitive personal information and internal corporate documents, potentially exposing clients to identity theft, fraud, and reputational risks.

Shadow Tier lists Mar 13, 2026 as the signal date.

Kloecknermetals is the organization connected to this public signal.

This signal is connected to current ransomware incidents based on its reported incident context.

This signal is connected to data exposure and breach intelligence based on its reported consequences.