# Online fraudulent and phishing scams > Live situation record from CLSTR: https://clstr.news/situations/online-fraudulent-and-phishing-scams > Updated: 2026-10-19T07:00:21.000Z. Sources: 7. Developments: 2. Cybersecurity researchers and experts have identified various online fraudulent schemes targeting users through deceptive digital tactics. Initial reports highlighted a widespread advertising scam where malicious ads simulate device infections on popular websites. These ads use browser hijacking techniques—such as disabling the escape key and freezing the screen—to display alarming messages claiming a ‘severe infection’. This pressure tactic aims to trick users into calling fraudulent technical support numbers to pay large sums or provide remote access to their devices. Subsequent warnings have focused on the rise of phishing and fraudulent links, particularly during major discount campaigns like ‘Cyber Wow’. Fraudsters utilize a sense of urgency to mimic legitimate retailers, banks, or social media platforms. Experts recommend verifying official channels, scrutinizing web addresses, and implementing security measures such as two-step verification and immediate antivirus scans if a breach is suspected. ## Timeline ### 2026-10-19: Cybersecurity warnings issued regarding phishing and fraudulent links Cybersecurity warnings highlight the risks of phishing during discount events. Experts advise verifying links, disconnecting from the internet if a scam is clicked, and updating passwords immediately. 5 sources. https://clstr.news/cluster/cybersecurity-warnings-issued-regarding-phishing-and-fraudulent-links ### 2026-09-26: Cybersecurity alert: Malicious online ads scam users with fake tech support warnings Cybersecurity researchers warn of a global scam where malicious online ads freeze Windows and Mac computers, displaying fake infection alerts to trick users into calling fraudulent technical support. 2 sources. https://clstr.news/cluster/cybersecurity-alert-malicious-online-ads-scam-users-with-fake-tech-support-warnings --- Cite as: Online fraudulent and phishing scams. CLSTR, https://clstr.news/situations/online-fraudulent-and-phishing-scams