false positives Archives

Tech Optimizer

October 7, 2026

VPN threat protection vs. dedicated antivirus: Are VPNs really enough?

Many VPN providers are now offering additional security features such as malware detection, malicious link checkers, and ad blockers, alongside their primary function of encrypting internet traffic. Notable VPNs like NordVPN and Surfshark have integrated real-time malware protection, with NordVPN becoming the first VPN to receive certification as a reliable anti-phishing tool in 2024. Surfshark's Surfshark One package offers comprehensive real-time protection from viruses and malware. Other VPNs, such as Avira and CyberGhost, utilize shared infrastructures for antivirus capabilities, which can lead to delays in updates and inconsistent platform support. Microsoft Defender has improved significantly, blocking 95.5% of live threats according to AV-Comparatives, while Apple employs multiple defenses in macOS, including Gatekeeper and XProtect, to manage malware threats. Avast Free Antivirus has achieved a perfect 100% block rate in recent testing but comes with limitations compared to paid antivirus suites like Norton 360 Deluxe and Bitdefender Total Security, which offer additional features such as password managers and identity monitoring. A layered approach to digital security, combining a VPN, free antivirus, and built-in OS-level security, is recommended for effective protection. Relying solely on one layer leaves potential gaps, as a VPN cannot detect existing malware, and free antivirus solutions may lack advanced features. Users managing sensitive data or frequent financial transactions should consider investing in premium antivirus suites for enhanced security.

AppWizard

September 30, 2026

GitHub AI Security Agent Finds 24 Android Vulnerabilities Including Account Takeover Flaws

GitHub Security Lab's open-source AI security agent identified 24 vulnerabilities in various Android applications, including critical flaws in the OsmAnd navigation app and the Wikipedia app for Android. The OsmAnd vulnerability allows a malicious app to silently import and replace settings, potentially enabling covert location tracking. The Wikipedia app's vulnerability involves inadequate hostname validation for deep links, allowing attackers to load malicious content and potentially take over user accounts. The research highlights the effectiveness of AI in identifying vulnerabilities while emphasizing the need for human validation. The GitHub Security Lab Taskflow Agent automates security research workflows, focusing on mobile entry points and evaluating them against Android-specific vulnerability classes. The findings stress the importance of expert review for AI-generated results.

AppWizard

September 29, 2026

How we found 24 Android vulnerabilities using our open source AI security agent

The GitHub Security Lab has introduced the Taskflow Agent, an open-source tool that uses artificial intelligence to automate the identification of vulnerabilities in Android applications. This tool allows security researchers to create custom taskflow prompts, leading to the discovery of over 20 vulnerabilities. To use the taskflows, a GitHub Copilot license is required, and users can run scripts to audit their projects, with results displayed in an SQLite viewer. Two specific vulnerabilities identified include: 1. OsmAnd app allows malicious applications to track user locations due to improper handling of intent extras in its exported activity. 2. The Wikipedia app has a logic flaw that enables attackers to redirect users to malicious sites via a deeplink mechanism, potentially leading to account takeovers. The GitHub Security Lab has reported a total of 24 vulnerabilities in Android applications, highlighting the effectiveness of AI in security research.

Tech Optimizer

September 26, 2026

Norton 360 for Gamers vs Bitdefender vs Malwarebytes [2026]

Norton 360 and Bitdefender Total Security achieved perfect scores from AV-TEST in June 2026, while Malwarebytes had a 100% real-world protection rate in AV-Comparatives’ testing but with a higher false-positive rate. Bitdefender Total Security is recommended for PC gamers as it minimizes frame-rate impact to 0-2% during gameplay. Norton 360 for Gamers includes features for streamers and competitive players but has a higher renewal price. Malwarebytes Premium is noted for its minimal resource usage but lacks a dedicated game mode. The pricing for Norton 360 starts at .99 for the first year and increases to .99 upon renewal, Bitdefender starts at .99 for a single device, and Malwarebytes Premium aligns closely with Norton’s entry price but does not include a VPN. In FPS testing with Cyberpunk 2077, Norton showed a 2-3% drop, Bitdefender a 0-2% decrease, and Malwarebytes under 1%. Norton uses a hybrid detection model, Bitdefender employs cloud-based scanning, and Malwarebytes focuses on behavior-based detection. Norton offers gamer-tag dark web monitoring and a bundled VPN, while Bitdefender has limited VPN features on standard tiers and Malwarebytes lacks these protections.

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 25, 2026

We Tested 10 Best Antivirus Software for 2026

Cybersecurity threats are on the rise, with Verizon’s 2026 Data Breach Investigations Report indicating that 48% of breaches involve ransomware and 31% arise from software vulnerabilities. A review of leading antivirus programs assessed their effectiveness against various threats. Top antivirus software includes: - Bitdefender: Best overall, effective against various threats, perfect score from AV-TEST. - Norton 360: Best all-in-one suite, includes VPN and parental controls, perfect score from AV-TEST. - McAfee+ Premium: Best for families, unlimited device coverage, full marks from AV-TEST. - Malwarebytes: Best for simple protection, user-friendly interface, rated 5.5/6 by AV-TEST. - ESET NOD32: Best for advanced users, lightweight and fast, includes Gamer Mode. - Avast: Best free option, offers various scanning options, straightforward upgrade path. - Microsoft Defender: Built-in for Windows, essential protection, perfect score from AV-TEST. - Intego ONE: Best for Mac users, includes firewall and VPN. - Surfshark Antivirus: Combines antivirus and VPN services, real-time protection. - TotalAV: Best for beginners, combines antivirus with web security tools. The evaluation process included lab data from AV-TEST and AV-Comparatives, hands-on experience, and criteria such as malware protection, false positives, system performance impact, phishing protection, ease of use, platform coverage, additional security features, and pricing. Key metrics from antivirus lab tests include protection scores, false positives, and performance impact. The choice between antivirus software and internet security suites depends on individual needs. Antivirus software remains necessary, especially for Windows PCs, to complement other security measures.

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.

Winsage

September 16, 2026

Harden Windows Defender: 12 Steps, 99.9% [2026]

Windows 11 includes Microsoft Defender Antivirus, which operates in the background and receives automatic updates. Its default settings focus on compatibility rather than maximum security, prompting the need for configuration to enhance protection. Prerequisites for configuration include: - Windows 11 version 24H2 or 25H2 - Fully patched build number (26100.9457 or newer) - Local administrator account for certain steps - Microsoft Defender Antivirus version 4.18.x - Windows PowerShell 5.1 run as Administrator - Stable internet connection - No active third-party antivirus software Steps to enhance Microsoft Defender include: 1. Confirming the current Windows 11 build. 2. Verifying that Defender is the active antivirus using PowerShell. 3. Enabling cloud-delivered protection and automatic sample submission via PowerShell commands. 4. Activating Tamper Protection through Windows Security. 5. Enabling Controlled Folder Access to protect against ransomware. 6. Deploying Attack Surface Reduction rules in audit mode. 7. Turning on Smart App Control. 8. Enabling Core Isolation and Memory Integrity. 9. Scheduling weekly full and offline scans. 10. Creating narrow exclusions for known safe applications. 11. Enhancing network protection and SmartScreen features. 12. Running a PowerShell verification script to audit settings. These steps aim to optimize Microsoft Defender Antivirus for improved security comparable to premium solutions.

Tech Optimizer

September 15, 2026

AI Is Changing Antivirus From File Matching to Behaviour-Based Malware Detection

Artificial intelligence is transforming malware detection by moving away from traditional file signature reliance to analyzing program actions. Antivirus software previously used signatures to identify known threats, but the rapid emergence of over 450,000 new malware samples daily complicates this method. Attackers now employ techniques like repacking and encryption to evade detection, prompting the need for machine-learning and behavioral techniques for better protection. Modern detection systems assess multiple characteristics of executable files, including their behavior, to identify potential threats, even if they lack recognized signatures. Microsoft's Project Ire exemplifies advanced detection capabilities, functioning as an automated malware analyst that evaluates unknown binaries based on their behavior. Additionally, modern endpoint-security products leverage cloud systems to analyze data from multiple devices, enhancing threat detection through shared intelligence. However, AI detection can still produce false positives and is susceptible to manipulation by attackers. Therefore, effective security systems require a combination of traditional measures, behavioral monitoring, machine learning, and human analysis to navigate complex threats.

Tech Optimizer

September 12, 2026

8 Antivirus (Endpoint Protection) Software for Business: Our Top Picks by Use Case (2026)

If you hold Microsoft 365 E5, you already have access to Microsoft Defender for Endpoint, which provides enterprise-grade endpoint protection at no additional cost. For organizations without a dedicated security specialist, Sophos is recommended. CrowdStrike is suitable for those with a mature Security Operations Center (SOC) and sufficient budget. Other options include SentinelOne for mid-sized organizations needing automation, ESET for older hardware and virtual desktops, Avast Business for very small businesses without IT staff, VIPRE for budget-conscious organizations, and Expel for tool-agnostic managed detection and response. It is essential to assess your organization's current situation honestly when evaluating endpoint protection options. Antivirus and EDR are now essentially the same agent, and organizations should inquire about update staging processes and review independent tests for protection rates. Coverage for servers and Linux environments is often overlooked but crucial, as Linux servers are prime targets for ransomware. Key recommendations include: - Microsoft Defender for Endpoint for organizations already on Microsoft 365 E5. - Sophos for organizations with 25-500 staff relying on IT generalists. - CrowdStrike for enterprises with a well-funded security operations function. - SentinelOne for mid-sized organizations needing autonomous operation. - ESET for organizations with older hardware or virtual desktop infrastructure. - Avast Business for micro and small businesses. - VIPRE for budget-conscious organizations. - Expel for those seeking managed detection across various environments. During deployment, avoid running two real-time agents simultaneously, ensure prevention features are activated, and test on line-of-business applications first. Verify update staging and rollback procedures with vendors, and confirm whether Microsoft licensing covers your needs to avoid unnecessary purchases.