computer security Archives

Tech Optimizer

September 21, 2026

Do You Really Need Antivirus in 2026?

The landscape of computer security has changed significantly over the past two decades. In 2026, antivirus protection remains important, but the need for separate third-party programs has decreased for many users due to the built-in Microsoft Defender in Windows 11, which is activated by default and effectively blocks 100% of common malware samples according to independent testing by AV-TEST. Windows 11 also includes additional protective features like SmartScreen and a robust Firewall. While dedicated security suites from companies like Norton and Bitdefender offer advanced functionalities, many users may find adequate protection with the built-in tools. Research from AV-Comparatives indicates that performance varies among security programs, particularly against real-world attacks. Phishing attacks accounted for approximately 60% of initial access points in incidents examined by the ENISA Threat Landscape report from 2025, highlighting that user behavior is a significant vulnerability. Modern web browsers and operating systems have enhanced their security measures, with Google Chrome, Microsoft Edge, macOS, and Android incorporating features to protect users from harmful websites and downloads. For the average Windows 11 user who keeps their system updated and practices safe browsing, built-in protection is generally sufficient, though paid antivirus options can provide additional tools.

Tech Optimizer

September 1, 2026

Fake Microsoft Security Scan Tells You to Remove Antivirus—Then Scammers Ask for Remote Access

A new web-based scam is using counterfeit Microsoft-branded security scans to deceive users into uninstalling their antivirus software. The scam websites conduct fake inspections, reporting false security failures and claiming third-party antivirus products are unsupported by Windows. They gather browser information to create customized-looking scan reports and aim to mislead victims into a fraudulent refund process. Investigators have identified 11 related scam sites under the name SysScan, which present themselves as legitimate Microsoft security checks. The scam does not involve file downloads but relies on convincing websites, fabricated security scores, and personal information forms. The scan results are hard-coded, and the security score is limited to a range between 13 and 30 out of 100. The scams instruct users to uninstall antivirus software, which is misleading since Windows does not cease support for third-party antivirus solutions. The scam sites request extensive personal information, including names, addresses, phone numbers, and banking details, and redirect victims to a page claiming a refund manager will call shortly. This process allows scammers to gain remote access to victims' computers. Indicators of compromise include specific IP addresses and domains associated with the scam.

Tech Optimizer

August 24, 2026

Fake Microsoft security scans trick victims into uninstalling their antivirus

A surge of fraudulent websites claiming to verify antivirus software functionality has emerged, using the name SysScan and misleadingly asserting that Windows no longer supports third-party antivirus solutions. These sites conduct fake security scans, gather personal information, and set up a refund scam. Eleven such websites were found hosted on a single server, executing similar deceptive tactics. They can access basic browser data but cannot conduct genuine security scans. Microsoft continues to support third-party antivirus software, and legitimate refund processes do not require uninstalling security tools. The scams instruct users to remove their antivirus software to facilitate further manipulation and to collect information about the antivirus in use. The customer information forms collect extensive personal data and are designed to send this information to a Telegram bot API. Victims are promised a refund call after submitting their information, which is part of the scam's manipulation. Signs of such scams include claims of deep problems with the computer, consistently negative diagnostic results, requests to uninstall antivirus software, and demands for banking information. If affected, victims should disconnect from the internet, remove remote-access tools, and contact their bank. The hosting IP address for these sites is 157.230.180.90, with multiple associated domains listed.

Tech Optimizer

August 7, 2026

I’ve found the best antivirus software to protect your PC in 2026

The Independent and Yahoo will earn a commission from purchases made via links in this article. Pricing and availability are subject to change. Windows 11 includes Microsoft's built-in Defender, but its security measures are basic. Effective antivirus solutions provide comprehensive threat analysis, advanced malware protection, and additional privacy features such as VPNs and password managers. No antivirus can protect against every threat, so users should download applications from trusted sources and use strong, unique passwords. The best antivirus apps for 2026 include: - Bitdefender Total Security: £42.49 for the first year, rated 5/5, includes a limited VPN, offers multi-device coverage, excellent malware detection, and built-in tools for phishing and ransomware protection. - Malwarebytes Plus: £29.99 annually for the basic package, rated 4/5, includes a VPN in the 'plus' bundle costing £49.99, focuses on malware removal and identity protection features. - McAfee Premium: Rated 4/5, includes unlimited VPN, compatible with various platforms, offers a firewall, ransomware protection, and AI-powered scam detection. - F-Secure Total: Rated 4/5, includes a password manager and deep scanning capabilities, but the basic plan covers only a single device. - Sophos Home Premium: Rated 4/5, allows coverage for up to ten devices under one subscription, features real-time scanning and parental controls, but does not include a password manager. Most antivirus applications offer free trials. The testing involved installing each application on a Windows 11 PC and conducting scans, while also reviewing reports from independent security testing labs.

Tech Optimizer

July 6, 2026

Why Antivirus Alone No Longer Protects Small Businesses

Many small businesses have historically relied on antivirus software for computer security, which was effective against identifiable malware. However, the current cyber threat landscape includes sophisticated attacks such as phishing, credential theft, and ransomware that traditional antivirus solutions may not adequately address. Factors driving increased cyber threats in Kenya include phishing, weak authentication practices, delayed software updates, and the use of artificial intelligence by malicious actors. While antivirus software can detect known malware and block common threats, it falls short against tactics like stolen credentials and social engineering. The Communications Authority recommends complementing antivirus with multi-factor authentication, regular software updates, secure configurations, and user training. Endpoint Detection and Response (EDR) solutions enhance visibility into attacks by monitoring endpoint activity for suspicious behaviors, allowing for prompt investigation and response. A layered security strategy that integrates multiple protective measures is essential for effective cybersecurity, and many modern security platforms offer unified solutions to simplify management for smaller organizations. The Kaspersky SMB Cybersecurity Guide provides insights into modern attack methods and the role of endpoint protection in improving a business's cybersecurity posture.

Winsage

June 30, 2026

Windows Defender ‘BlueHammer’ vulnerability now exploited as part of malware campaigns — CISA issues warning despite patch release on April 14

A race condition vulnerability in Windows Defender, known as BlueHammer, has been exploited by the hacker Nightmare Eclipse, allowing attackers to gain SYSTEM user access. Microsoft released a patch for this vulnerability on April 14, but the Cybersecurity and Infrastructure Security Agency (CISA) has flagged it as actively exploited in ransomware campaigns. The average time to apply critical OS patches across Windows 10 and 11 is now 127 days, with enterprise environments averaging 76 days. Estimates suggest that 15% to 26% of Windows 10 machines remain unpatched, with a conservative estimate of 20% translating to one in five machines being vulnerable. Microsoft has extended security updates for Windows 10 until October 14, 2027, but public awareness of the updates remains low.

Tech Optimizer

May 26, 2026

What the Tech? What to ask yourself before downloading an anti-virus app

Most individuals do not require antivirus apps on their smartphones, as the primary threats are scams rather than traditional viruses. iPhones use app isolation, making conventional antivirus scans ineffective; threats include phishing texts and fraudulent websites. Android phones allow sideloading, increasing the risk of malware from unofficial sources. The main dangers are deceptive tactics like phishing, scam calls, and social engineering. To enhance security, users should keep their operating systems updated, use strong passwords, enable two-factor authentication, avoid suspicious links, and refrain from installing apps from unknown sources. Antivirus apps may be beneficial for users who frequently click unverified links, download files from unfamiliar sites, or engage in Android sideloading. Reputable security apps focus on scam detection and account safety rather than traditional virus scanning.

Tech Optimizer

May 25, 2026

What The Tech: Is an anti-virus software needed for smartphones?

Most smartphone users do not require antivirus applications, as the primary threats are scams rather than traditional viruses. iPhones have a secure operating system that limits antivirus functionality, focusing on scams like deceptive texts and phishing links. Android devices allow sideloading, increasing the risk of malware from unofficial sources. Best practices for smartphone safety include downloading apps from official stores, using trusted developers, avoiding dubious links, keeping the operating system updated, using strong passwords, enabling two-factor authentication, and refraining from installing apps from unknown sources. Antivirus apps may be beneficial for users who frequently click on links, download files from unfamiliar websites, install many applications, engage in Android sideloading, or seek additional protection against scams. Reputable security apps prioritize scam detection and unsafe website identification over traditional virus scanning.

Tech Optimizer

May 21, 2026

What the Tech? Antivirus protection for your smartphone

Most users do not require an antivirus app on their smartphones, as the predominant threats are scams such as phishing texts and fraudulent websites rather than traditional viruses. iPhones operate on a design that isolates apps, limiting the effectiveness of antivirus software, while Android devices allow sideloading, which can increase the risk of malware. The real danger lies in deception tactics used by cybercriminals, making personal account security more important than antivirus software. To enhance security, users should keep their operating systems updated, use strong passwords, enable two-factor authentication, avoid suspicious links, and refrain from installing apps from unknown sources. Antivirus apps may be beneficial for users who frequently click on unverified links, download files from unfamiliar sites, or engage in Android sideloading. Reputable security apps focus on scam detection and web protection rather than traditional virus scanning.

Tech Optimizer

March 11, 2026

CAFC Reverses District Court’s Finding of Eligibility for Columbia Antivirus Software Claims

The U.S. Court of Appeals for the Federal Circuit (CAFC) reversed a district court's judgment that had deemed Columbia University's patent claims eligible for protection in the case of The Trustees of Columbia University of the City of New York v. Gen Digital Inc. The CAFC concluded that Columbia's claims, related to virus protection, were directed toward an abstract idea and did not introduce a novel method or enhance existing methodologies. The court vacated a contempt order against the defendant’s legal team, Quinn Emanuel Urquhart & Sullivan, LLP, determining that the district court's Disclosure Order regarding potential conflicts of interest was invalid. The CAFC also indicated that one argument from Columbia regarding the "model of function calls" should be examined upon remand, as it may constitute an inventive concept. The court upheld the district court's interpretation of the "emulator" and denied judgment as a matter of law for Norton regarding willful infringement, while reversing the enhanced damages award and instructing a reassessment of attorneys’ fees.