antivirus products Archives

Tech Optimizer

September 25, 2026

Norton 360 for Gamers vs Bitdefender vs Malwarebytes [2026]

Norton, Bitdefender, and Malwarebytes have adjusted their antivirus products to mitigate the negative effects on gaming performance. In June 2026, Norton 360 and Bitdefender Total Security both received a perfect AV-TEST score of 18 out of 18, while Malwarebytes achieved a 100% real-world protection rate in AV-Comparatives testing, though it had more false positives. Bitdefender Total Security is recommended for gamers due to its low frame-rate impact of 0-2%, while Norton 360 offers features for streamers and competitive players, and Malwarebytes serves as a lightweight secondary scanner. The value of gaming accounts has increased, making them targets for cybercriminals, with malware campaigns like Vidar 2.0 accounting for 41% of gaming-related malware detections. New malware families such as Katz and Bee specifically target Discord and gaming platforms. In terms of performance, Norton showed a 2-3% FPS decrease in Cyberpunk 2077, while Bitdefender's impact was only 0-2%, and Malwarebytes had less than 1% impact. Norton and Bitdefender are tied in detection capabilities, both scoring 18/18 in AV-TEST, while Malwarebytes had a 92.4% offline detection rate and 98.3% online. Norton includes a no-log VPN and gamer-tag monitoring, while Bitdefender offers identity protection without specific gamer-tag monitoring. Malwarebytes lacks a VPN and password manager. Pricing varies, with Norton starting at .99 for three devices, Bitdefender at .99 for one device, and Malwarebytes at .99 for one device. To switch antivirus solutions, users should back up their license keys, use removal tools, and ensure game-aware modes are active. Each product has unique strengths: Norton excels in gamer-tag monitoring, Bitdefender minimizes CPU usage, and Malwarebytes is lightweight but lacks additional features.

Tech Optimizer

September 23, 2026

BigDiskBuster PoC Blocks Windows Defender Updates

A new tool named BigDiskBuster has been released on GitHub, which disrupts Microsoft Defender Antivirus by preventing it from installing updates. It does this by consuming available disk space during the update process, causing Defender to remain on its current version and unable to receive new platform or signature updates. BigDiskBuster operates as a local denial-of-service technique and requires prior access to the target machine to execute. The tool was created by researcher Abdelhamid Naceri, known as Nightmare Eclipse, who has previously worked on similar projects. As of now, there is no CVE identifier, patch, or advisory from Microsoft regarding this issue.

Tech Optimizer

September 19, 2026

Set Up Bitdefender Antivirus Free: 13 Steps [2026]

Bitdefender Antivirus Free was upgraded to version 27.0.62.355 on September 11, 2026, introducing a new Advanced Threat Defense driver that enhances behavioral monitoring capabilities. The free version is designed for Windows only and promises to remain free indefinitely, lacking features found in paid versions such as anti-tracking tools and a full vulnerability scanner. The installation requires Windows 10 or 11, at least 2GB of free disk space, a local administrator account, an active internet connection, and a Bitdefender Central account. Users must remove any existing antivirus software before installation, and the installation process typically takes 60 to 75 minutes. Bitdefender Free covers one Windows device and offers robust malware detection capabilities, particularly with the Advanced Threat Defense layer. It is recommended to schedule regular scans and check the Notification Center for quarantined items. If uninstalled, the dedicated uninstall tool should be used to avoid leftovers that could interfere with future installations.

Tech Optimizer

September 15, 2026

Best Free Antivirus: 11 Steps, 18/18 Score [2026]

Microsoft Defender scored 17.5 out of 18 in the June 2026 evaluations by AV-Test, while Avast Free Antivirus and AVG AntiVirus Free both achieved a perfect score of 18 out of 18. Avira Internet Security scored 16.5. The evaluations assessed 16 consumer antivirus products based on protection, performance, and usability. Microsoft Defender is built into Windows 11 and is free, while Avast and AVG are true free offerings. AV-Test uses a scoring system where each category is scored out of 6.0, leading to a maximum total of 18.0. Users should ensure they have the latest versions of antivirus products and only run one real-time antivirus engine at a time. Common pitfalls include running two real-time engines and downloading from unofficial sources. For low-risk users, Microsoft Defender is sufficient, while those seeking higher protection may consider Avast or AVG.

Tech Optimizer

September 10, 2026

8 Antivirus Software for Mac: Our Top Picks by Use Case (2026)

Apple provides built-in security features for macOS, including XProtect, Gatekeeper, and automatic malware removal, which contribute to the safety of Macs. However, these protections do not effectively address threats like infostealers, phishing, and adware. For enhanced security, third-party antivirus solutions are recommended. Bitdefender is noted for its strong detection rates and minimal system impact, making it suitable for most users. Intego specializes in Mac-specific threats and is ideal for users focused solely on Apple products. ESET and Trend Micro are recommended for businesses needing centralized management. F-Secure is recognized for its privacy-focused approach, while Norton offers a comprehensive suite of security features. AVG provides free real-time protection suitable for low-risk personal use, but may not be adequate for business needs. CleanMyMac is a maintenance tool rather than a traditional antivirus, focusing on system cleanup and optimization. Users should avoid running multiple real-time scanners simultaneously and ensure they purchase appropriate licenses for business use. It's important to evaluate the necessity of additional features and consider long-term pricing when selecting antivirus software.

Tech Optimizer

September 3, 2026

Prolific Microsoft 0-day hunter drops CrowdStrike Falcon exploit PoC

Nightmare Eclipse, a security researcher known for identifying vulnerabilities in Microsoft products, has shifted focus to other vendors, revealing a zero-day vulnerability called FalconFlank that targets CrowdStrike’s Falcon endpoint security platform. FalconFlank is a privilege escalation vulnerability that exploits the Microsoft Office malicious macros remediation feature within CrowdStrike Falcon. CrowdStrike is investigating the claims and advises customers to disable the Microsoft Office File Suspicious Macro Removal Windows policy setting while assuring them of continued protection through Cloud Anti-malware settings. The exploit works on fully updated Windows 11 25H2 and Windows Server 2025 systems running CrowdStrike Falcon with Optimal Protection enabled. Nightmare Eclipse has also discovered other vulnerabilities, including HardBreacher affecting Kaspersky’s endpoint antivirus and PrettyPrague in Gen Digital’s Avast antivirus, which allows attackers to dump the SAM database. Gen Digital is developing a patch for the Avast vulnerability, while Kaspersky has not commented. Additionally, Nightmare disclosed a memory corruption zero-day vulnerability in Nvidia, named GreenSection, which causes system crashes.

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 31, 2026

Gen Digital stock holds steady as investors await next earnings update

Gen Digital Inc. (US3687361044) is a significant player in the consumer cybersecurity software market, with its stock trading steadily as of late August 2026. The company emerged from the merger of NortonLifeLock’s consumer security business and Avast, focusing on antivirus, identity protection, and privacy tools for individual and small-business users. It reported multi-billion-dollar revenue from consumer security subscriptions in its most recent fiscal year, demonstrating year-over-year revenue growth and solid profitability. The company’s management has provided guidance for stable to moderately rising revenue and strong operating margins for the current fiscal year. Analyst consensus indicates expectations of modest earnings per share growth. Gen Digital's strategy includes offering subscription bundles that integrate various security services, enhancing customer retention and average revenue per user. The company has a diversified global reach and reported substantial free cash flow, supporting debt servicing and product development investments. Its consumer security suite combines antivirus protection, VPN services, and identity monitoring into a single subscription offering. As of late August 2026, Gen Digital's stock trades on a major U.S. exchange, reflecting balanced expectations between earnings growth and competitive risks.

Tech Optimizer

August 27, 2026

Scammers Impersonate Microsoft to Push Fake Security Scans and Refund Fraud

A network of fraudulent websites, branded as SysScan, has been discovered, which falsely claims to evaluate antivirus software effectiveness through deceptive security scans. These sites manipulate users into uninstalling legitimate antivirus products and disclosing sensitive personal and banking information. Eleven distinct domains associated with SysScan have been identified, all hosted on a single server. The fraudulent scans generate misleading results based on static findings rather than actual system assessments, and users are coerced into believing their computers are at risk. The scams misrepresent normal browser behaviors as security threats and instruct victims to uninstall their antivirus software, compromising their defenses. The operation targets both individual and business users, collecting extensive personal information and utilizing remote-access tools. The data submitted is sent to Telegram via its bot API. Users are advised to disconnect from the internet and secure their devices if they suspect they have been compromised. Indicators of compromise include specific IP addresses and domains associated with the scam.

Tech Optimizer

August 26, 2026

Catch Of The Week: The ‘Security Scan’ That Wants You Defenseless

Researchers at Malwarebytes have identified a network of deceptive websites posing as a service called “SysScan,” which pretends to conduct Microsoft security checkups. Users encounter these sites through search results, browser hijacking pop-ups, or unsolicited emails. The sites use Microsoft branding and a fake progress bar to create the illusion of a scan, but they only collect harmless data like operating system and location, which are then manipulated into alarming fake alerts. The fabricated security score is predetermined and does not reflect the user's actual security status. The scam misleads users into believing that Windows no longer supports third-party antivirus software, prompting them to uninstall their protections, which increases their vulnerability. Users are then asked to provide personal and banking information through a form that sends data via a Telegram bot. Eleven fraudulent sites have been traced back to a single server. Indicators of the scam include requests to disable antivirus software, installation of remote-access software, and solicitation of sensitive information. Microsoft does not initiate cold calls or scan computers through web pages. If someone has engaged with the scam, they should disconnect from the internet, uninstall any remote-access tools, reinstall antivirus software, and report the incident to authorities.