cybersecurity Archives

Tech Optimizer

September 16, 2026

Best Antivirus for Windows 2026: 5 to Install, 1 to Avoid

Windows is the only desktop platform where antivirus software is essential. Microsoft has patched many vulnerabilities, but the OS still allows installations from unverified sources and connects to potentially untrustworthy networks. As of 2026, the top antivirus solutions for Windows include: - Norton 360: Best overall, with a full scan time of 13 minutes and 22 seconds, robust firewall, and up to 250 GB cloud backup. - Bitdefender: Best for older PCs, maintaining peak CPU usage at 11% and memory at 183 MB during scans. - Avast One: Best free option for Windows 11, achieving a perfect score in AV-TEST. - NordVPN Threat Protection Pro: Best for VPN users, blocking 90% of malware. - McAfee+: Best for households with multiple devices, offering unlimited coverage but is the slowest scanner. - Microsoft Defender: Best free option included with Windows, awarded Top Product by AV-TEST. Norton 360 has a 99.8% detection rate and offers a 60-day refund window. Bitdefender also has a 99.8% detection rate with low resource usage. Avast's free version is effective, while NordVPN provides integrated malware protection for existing VPN users. McAfee is suitable for large households but has slower performance. Microsoft Defender is adequate for single users practicing safe browsing but lacks multi-device support. Kaspersky is unavailable in the U.S. due to supply chain concerns.

Tech Optimizer

September 16, 2026

Chinese state security authorities warn outdated antivirus software can expose systems to cyberattack

Chinese state security officials have emphasized the necessity for organizations to keep antivirus software and virus databases updated to prevent data breaches and unauthorized access. The Ministry of State Security (MSS) highlighted that neglecting these updates has led to significant security incidents, including the theft of sensitive data and cyberattacks on work email accounts. Specific cases include a research institute that suffered a breach due to unpatched vulnerabilities, an institution exposed to cyberattacks for not enforcing regular virus scans, and a company that operated a poorly protected server with outdated antivirus software. Contributing factors to delayed updates include a lack of awareness about cybersecurity risks, insufficient network maintenance, and unclear responsibilities within organizations. Under China's Cybersecurity Law, network operators must implement measures to protect against cybersecurity threats. The MSS advises organizations to enhance their cybersecurity measures by adopting technologies like automated risk alerts and intelligent behavioral analysis.

Tech Optimizer

September 15, 2026

Iranian Hackers Use Fake Norton Antivirus to Spread Windows Spyware

Iranian state-sponsored hackers are targeting dissidents, activists, and journalists using deceptive tactics, including malicious applications that impersonate reputable cybersecurity products like Norton Antivirus and KeePass. The FBI and UK authorities issued a warning about these hackers, who establish rapport with targets via social messaging platforms, posing as IT support or known contacts. They convince victims to download files that appear authentic, including AI video creation applications and other software. The spyware, named “Chosen Brick,” infects Windows PCs and has capabilities such as capturing screen content, recording audio, collecting message data, and downloading additional malware. The hackers have exploited this spyware to publish personal details of victims, increasing their harassment. The FBI advises potential victims on detecting the spyware and recommends enabling antivirus software, running regular scans, and avoiding unofficial downloads.

Winsage

September 15, 2026

Iranian spies hit Windows machines with Chosen Brick data-stealing malware

Iranian state cyber actors are targeting individuals through popular messaging applications, using surveillance and data-stealing malware known as "Chosen Brick," which has been in use since at least 2025. This malware is designed for Windows systems and enables the theft of personal data, allowing Iranian spies to monitor perceived threats such as dissidents, activists, and journalists. The attacks typically begin with messages sent via WhatsApp or Telegram, impersonating trusted contacts. Attackers conduct extensive research on their targets to craft convincing messages that encourage victims to download malicious files disguised as legitimate applications. Once executed, Chosen Brick operates stealthily, evading detection and establishing a connection for command-and-control communications. It can enumerate processes, capture screen and audio content, extract sensitive information, and even wipe infected systems. Organizations suspecting compromise are advised to engage IT providers for investigations and to inform staff about potential risks. Recent alerts follow cyberattacks on water and energy sectors linked to Iran, with ongoing concerns about the implications for cybersecurity amid escalating military tensions. Additionally, five US agencies have reported that attackers are using AI-generated scripts to exploit vulnerabilities in critical infrastructure systems.

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 15, 2026

How to protect yourself from AI scams: Save $110 with McAfee antivirus

In 2026, McAfee introduced its AI-powered Scam Detector as part of the McAfee+ suite, which includes antivirus protection, identity monitoring, privacy tools, VPN services, and financial safeguards. The McAfee+ Advanced tier is available for .99 for the first year, reduced from 9.99, and a family plan for up to six members is priced at 9.99, down from 9.99. Each plan includes a 30-day money-back guarantee. Research shows Americans receive an average of 14 scam messages daily, with one in three falling victim to online scams, losing an average of ,160. The Scam Detector identifies threats such as suspicious texts, emails, deepfake videos, and risky websites, and includes a QR code safety check. It is included in all McAfee core plans at no additional cost.

AppWizard

September 14, 2026

One Click, Full Phone Access: Malicious Android Apps Raise Financial Fraud Risk

Malicious Android applications are being promoted through social media advertisements, particularly on platforms like Instagram and Facebook, posing significant risks to users. The Indian Cyber Crime Coordination Centre (I4C) has warned about deceptive apps advertised under names such as Night Play, Reloop, Kyss, Vimo, Rivo, Nezo, and Vixa, which often redirect users to pornographic websites to download APK files. These applications can exploit sensitive device permissions, leading to malware infections, unauthorized financial transactions, and various forms of cyber fraud. Users may be tricked into granting accessibility permissions that allow the malware to operate in the background and potentially install a VPN, rerouting internet traffic through servers controlled by attackers. Cybersecurity experts advise users to verify the legitimacy of applications before installation and to be cautious of permissions requested by unknown apps.

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.

AppWizard

September 11, 2026

NetScaler vulnerability exploited, AdaptHealth suffers breach, new Android malware

The Cybersecurity and Infrastructure Security Agency (CISA) warned of a critical vulnerability in NetScaler, identified as CVE-2026-19490, with a CVSS score of 9.3, which has been exploited and affects all NetScaler ADC and Gateway appliances. Citrix has patched this vulnerability as of August 19. AdaptHealth reported a data breach affecting over 4.1 million individuals, compromising personal, health, and insurance information, but not Social Security numbers or financial data. A new strain of Android malware, MantaxOtax, attributed to Indonesian threat actors, combines ransomware and spyware, stealing sensitive information and affecting older Android versions. The Gigabud banking trojan has evolved to evade detection by installing a secondary app that hides the malicious application. CISA acting director Nick Andersen emphasized the need for swift adaptation to cybersecurity threats and highlighted staffing improvements within CISA. Russian e-commerce giant Wildberries experienced disruptions from a DDoS attack affecting payments to sellers, following claims of a cyber operation by Ukraine's military intelligence. McKesson faced a cyberattack exposing sensitive data of 6.4 million individuals, with the ShinyHunters group releasing this data after a failed extortion attempt. IDScan confirmed a data breach affecting 150 million individuals, resulting in the theft of personally identifiable information and government-issued documents.

Tech Optimizer

September 10, 2026

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

If an organization holds Microsoft 365 E5, it already has access to Microsoft Defender for Endpoint. For organizations without a dedicated security specialist, Sophos is recommended for its user-friendly management. CrowdStrike is preferred for those with a mature Security Operations Center (SOC) and sufficient budget. The choice of endpoint protection depends on specific organizational needs. Business endpoint protection integrates various technologies to defend against malware and attacks on devices. Organizations should assess their current situation before selecting a solution. Key recommendations include: - Microsoft Defender for Endpoint for organizations already using Microsoft 365 E5. - Sophos for organizations with 25-500 staff relying on IT generalists. - CrowdStrike for enterprises with a funded SOC. - SentinelOne for mid-sized organizations needing automation. - ESET for those with older hardware or virtual desktops. - Avast Business for very small businesses lacking IT staff. - VIPRE for budget-conscious organizations needing straightforward coverage. - Expel for organizations wanting managed detection across diverse environments. Organizations should avoid running multiple real-time agents simultaneously and ensure prevention features are activated. Testing should prioritize line-of-business applications, and rollout procedures should be defined before going live. It’s essential to verify update staging and rollback procedures with vendors and confirm existing licenses to avoid unnecessary purchases.