endpoint security Archives

Winsage

September 4, 2026

Microsoft warns fake CAPTCHA is tricking Windows users into running malware

Microsoft has identified a new malware campaign called TerminalFix that uses fake CAPTCHA prompts to trick Windows users into executing malicious commands. This campaign is a variation of ClickFix attacks and employs deceptive pages that impersonate reputable services like Cloudflare. Instead of traditional CAPTCHA challenges, users are instructed to open PowerShell or Command Prompt and paste in commands, allowing attackers to execute complex scripts more easily. TerminalFix initiates a multi-stage intrusion, granting attackers persistent proxy access to the infected machine, which can lead to further exploitation of the company's network. The campaign relies on social engineering tactics, requiring user compliance with counterfeit verification instructions. Microsoft has released mitigation guidance, recommending restrictions on PowerShell access, monitoring for DLL sideloading, blocking outdated Flash plugins, and enabling cloud-delivered protection in Microsoft Defender Antivirus. The campaign poses significant risks to enterprise networks, but individual users should also be cautious about executing commands requested by websites.

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

August 22, 2026

Best Ransomware Protection 2026: Tested and Ranked

Ransomware protection is best approached as a layered strategy rather than relying on a single solution. The effectiveness of software is significantly enhanced by maintaining a well-managed backup that is disconnected during an attack. Five tools were evaluated based on their default settings, focusing on behavioral detection, protected folders, file rollback, and real-time protection. 1. Norton 360: Rated as the best overall ransomware protection, it offers comprehensive features including behavioral monitoring, protected folders with dual alert modes, and 50 GB of cloud backup within a single subscription. It has a perfect score in advanced threat assessments. 2. Bitdefender: Recognized for its file rollback and remediation capabilities, it provides an effective "undo" feature that restores files, although this feature is turned off by default. 3. Avast One Free: The best free ransomware protection option, it includes a dedicated shield on the free Windows tier and has achieved a perfect score in advanced threat assessments. 4. NordVPN Threat Protection Pro: Best for blocking the delivery route of ransomware, it prevents downloads before encryption starts but cannot stop the process once it has begun. 5. McAfee: Best for protecting multiple devices simultaneously, it offers unlimited device coverage on most plans with integrated ransomware defense in its scanning engine. Modern ransomware protection software has shifted from signature matching to focusing on monitoring the behavior of processes interacting with files. The four essential layers of protection include behavioral monitoring, protected folders, automatic file rollback, and backup. Most users do not need a separate anti-ransomware product, as these features are typically included in main antivirus suites, with the key consideration being whether these features are activated. The rankings of the tools were based on whether the ransomware protection layer is enabled by default, the extent of file recovery when intervention occurs, and the frequency of false positives during normal use. - Norton 360: Best overall, with protection enabled by default and a perfect score in advanced threat testing. - Bitdefender: Best for file rollback, but the rollback feature is disabled by default. - Avast One Free: Best free option, with a perfect score in advanced threat assessments but lacks rollback capabilities. - NordVPN Threat Protection Pro: Effective at blocking malware downloads but does not provide rollback or backup features. - McAfee: Suitable for families with multiple devices, offering automatic backup of flagged files but lacks user-configurable protected folder options. The effectiveness of ransomware protection tools is primarily assessed through behavioral responses rather than library matching. Backup remains a critical layer of defense, functioning even when other layers fail.

Winsage

July 20, 2026

Enable BitLocker on Windows 11: 11 Steps, 45 Min [2026]

A stolen laptop can lead to a significant data breach, particularly when taken from public places. Windows 11 has introduced BitLocker, a full-disk encryption feature that became mandatory for Australian businesses in 2026. The Office of the Australian Information Commissioner reported 766 notifiable data breaches in the latter half of 2024, with unauthorized access to devices being a major cause. Full-disk encryption is crucial for compliance with the Essential Eight framework, which mandates data protection on portable devices. BitLocker ensures that data on an encrypted drive becomes unreadable if the drive is removed and connected to another computer. It aligns with the Essential Eight framework, requiring evidence of encryption rather than just claims of protection. There are three types of encryption on Windows 11: Device Encryption, BitLocker Drive Encryption, and File-Level Encryption. BitLocker is available only on Windows 11 Pro and higher editions. To use BitLocker, certain prerequisites must be met, including having Windows 11 Pro or higher, a Trusted Platform Module (TPM) 2.0, UEFI firmware with Secure Boot enabled, and local administrator rights. The process to enable BitLocker involves confirming the edition, checking TPM status, enabling BitLocker through Windows Settings or PowerShell, and backing up the recovery key. Organizations can deploy BitLocker fleet-wide using Microsoft Intune, and additional security measures like TPM+PIN can be implemented for pre-boot authentication. Common pitfalls during BitLocker rollout include skipping recovery key backup and assuming that Home edition machines are covered. Troubleshooting common BitLocker issues involves identifying symptoms and applying appropriate fixes. Advanced tips for enhancing security include suspending BitLocker before maintenance and auditing compliance at the fleet level. BitLocker is integral to protecting data on portable devices, and compliance documentation is essential for proving that every device has an active recovery key.

Winsage

July 15, 2026

LabubaRAT malware infiltrates Windows systems while posing as NVIDIA software

LabubaRAT is a newly identified Rust-based remote access tool (RAT) that disguises itself as NVIDIA software to facilitate operations on Windows systems. It establishes a reusable foothold for hands-on activity and can profile the host system, identify security tools, execute commands, transfer files, capture screenshots, and proxy network traffic. LabubaRAT retrieves its configuration at launch via command-line arguments or environment variables, allowing operators to specify parameters like the command-and-control server and API key at runtime. It maintains local state in a SQLite database and supports communication through HTTPS polling, Microsoft Edge WebView2, and DNS tunneling. The malware includes capabilities for command execution, file handling, and establishing persistence through a Windows Run registry key. The entry point for the attack is an executable named nvidia-sysruntime.exe, which masquerades as NVIDIA’s container runtime toolkit. LabubaRAT conducts thorough profiling of the host, checking for installed browsers and security products, and gathers information on the system's specifications. Blackpoint Cyber has shared indicators of compromise to help detect LabubaRAT activity.

Winsage

July 1, 2026

Do you still need third-party antivirus on your Windows PC?

In April, a statement on the Windows Learning Center claimed that Microsoft Defender Antivirus is sufficient for many Windows 11 users, leading to brief attention before the article was removed a month later without explanation. The link now redirects to the homepage, but the content is still accessible via the Internet Archive. Microsoft has not clarified the removal, and speculation suggests backlash from the third-party security industry may have influenced this decision. Research indicates that the infection rate for consumer PCs in 2023-2024 was 3.07%, lower than the 2.39% for business PCs, suggesting that risks may not be as widespread as often claimed. The 2025 Cybersecurity Threat Report noted that 56% of consumer endpoints that faced an infection in 2024 experienced subsequent infections, with user behavior playing a significant role. A survey found that 54% of Americans rely on default device protection, while 46% use third-party antivirus solutions. Modern antivirus solutions, including Microsoft Defender, achieve protection rates of 99% or higher, with Defender specifically reaching a 99.0% protection rate without false positives. This performance indicates that Defender is adequate for most consumers. Default security measures on platforms are generally effective, with modern antivirus applications blocking 99.2% of threats that bypass other protections. Consequently, 97% of PCs remain free from malware infections, suggesting that improving user training may be more beneficial than investing in superior software. In contrast, businesses face different challenges, as attacks are often executed by sophisticated criminal organizations targeting vulnerabilities in third-party software. Enterprise administrators typically use specialized endpoint security products for centralized management and continuous monitoring, which are essential for protecting business environments.

Winsage

June 23, 2026

In 2011, Microsoft signed the Secure Boot certificates that still sit inside millions of Windows PCs, and the first one expires on June 24, 2026, leaving unupdated machines running normally while future boot-level revocations stop reaching them

Microsoft's Secure Boot certificates, including the Microsoft Corporation KEK CA 2011, will expire on June 24, 2026, followed by the Microsoft UEFI CA 2011 on June 27 and the Microsoft Windows Production PCA 2011 on October 19. New certificates issued in 2023 will replace these older ones. While devices will continue to operate and receive standard Windows updates, they will gradually lose access to critical security updates that protect against boot-level threats. After June 24, the ability to sign new disallowed signature database payloads with the old KEK will be lost, reducing the capacity to revoke compromised bootloaders. Users are advised to keep Windows and firmware updates current, while enterprises may face challenges managing diverse machine inventories for updates.

Tech Optimizer

June 11, 2026

9 Best Antivirus Software On G2: My Top Picks

Antivirus software can become overwhelming for organizations due to alert fatigue shortly after deployment. Analysts often struggle to prioritize notifications, leading to the mismanagement of legitimate tools and unclear incident timelines. A review of nine antivirus solutions based on G2's Winter 2026 Grid® Report identified the following top performers: 1. ESET PROTECT: Best for machine learning-driven endpoint protection; offers enterprise-grade security with a free trial available. 2. Sophos Endpoint: Best for ransomware prevention; provides centralized policy control with a free trial available. 3. ThreatDown: Cost-effective EDR with MDR flexibility; combines antivirus and endpoint detection with a free trial available. 4. CrowdStrike Falcon: Best for large-scale enterprise threat prevention; cloud-native platform with subscription-based pricing and a free trial available. 5. Check Point Harmony Endpoint: Best for unified endpoint and zero-trust protection; integrates malware prevention and phishing defense with a free trial available. 6. Microsoft Defender for Endpoint: Best for Microsoft-native environments; deeply integrated with Microsoft 365, licensed through enterprise agreements. 7. Kaspersky AntiVirus: Best for traditional malware protection; provides real-time protection against various threats. 8. SentinelOne: Best for autonomous AI-driven endpoint response; features automated remediation and ransomware rollback with a free trial available. 9. FortiClient: Best for Fortinet-centric environments; offers VPN access and security policy enforcement with a free basic client available. The analysis highlighted that effective antivirus solutions prioritize behavioral analysis over traditional signature-based detection, minimize false positives, and maintain low system impact during operation. Key factors for evaluating antivirus software include threat detection accuracy, centralized visibility, response capabilities, and deployment stability.

Tech Optimizer

June 6, 2026

CrowdStrike Falcon software: what the platform does in 2026

CrowdStrike Falcon is a cloud-native cybersecurity platform designed to protect endpoints, identities, and cloud workloads for enterprise users. It includes modules for next-generation antivirus, managed detection and response, cloud workload protection, and identity protection. The platform is available to enterprise customers in the U.S. and globally, serving core markets in U.S. enterprise cybersecurity and global cloud security. Falcon consolidates multiple security controls into a single system, facilitating scalability and simplifying operational processes across various environments, including Windows, Mac, and Linux. CrowdStrike is headquartered in Sunnyvale, California, and is publicly traded in the U.S.

Tech Optimizer

June 3, 2026

Endpoint Security Statistics By Market Share And Insights (2026)

Endpoints are critical computing devices connected to networks, including personal computers, tablets, smartphones, and smart appliances, and are often targeted in cyberattacks. Robust endpoint security is essential, especially in business environments with sensitive data. Endpoint protection solutions include antivirus software, endpoint detection and response (EDR) systems, and multi-factor authentication. - 81% of businesses have faced malware-related attacks. - 59% of ransomware incidents compromise data stored in public cloud environments. - In 2023, the average cost associated with breach detection and escalation reached USD 1.58 million. - 97% of executives access work accounts via personal devices. - During Q3 2024, malware detections at endpoints surged by 300%. - 13% of employees reported being victims of phishing attacks while working remotely. - 70% of employees using ChatGPT in the workplace do so without informing their employers. - 68% of companies have reported at least one successful endpoint attack that compromised their data or IT infrastructure. - 55% of professionals consider smartphones among the most vulnerable endpoints. - 47% of organizations monitor their networks around the clock. - The global financial impact of cybercrime is projected to exceed .5 trillion annually by 2025. - In 2021, 53% of organizations experienced successful ransomware attacks, marking a 148% increase from 2020. - Paying a ransom can double the total cost of a ransomware incident. - 40% of organizations delay patch rollouts to avoid potential conflicts. - 67% of IT professionals believe that Bring Your Own Device (BYOD) policies have weakened their organization's security posture. - 69% of Chief Information Security Officers (CISOs) expected at least one ransomware attack in 2022. - Only 50% of organizations encrypt sensitive data on their devices. - Organizations with a high number of remote workers face the greatest risks regarding endpoint security threats. - The endpoint security market is anticipated to grow from USD 13.37 billion in 2023 to USD 31.2 billion by 2032, with a compound annual growth rate (CAGR) of 12.1%. - Approximately 70% of companies plan to increase their investment in endpoint security solutions over the next two years. - The average financial impact of a data breach is estimated at around USD 4.88 million. - In 2023, the highest costs related to breaches were linked to detection and escalation, averaging USD 1.58 million. - As of 2024, the United States has the highest average cost of data breaches globally at USD 9.36 million. - A significant breach affecting 50 to 60 million records in 2024 is expected to cost USD 375 million. - Organizations facing compliance challenges typically incur an average breach cost of USD 5.05 million. - 40% of organizations admit to postponing patch implementations to avoid potential conflicts. - 92% of remote employees report using personal smartphones or tablets for work tasks. - 80% of executives are inclined to send work-related messages from personal devices. - 80-90% of successful ransomware attacks originate from unmanaged devices. - 62% of cybersecurity experts cite data loss and leaks as their primary concerns regarding BYOD policies. - 36% of employees using personal devices for work admit to delaying security updates. - 71% of employees store sensitive work passwords on personal phones. - 67% of organizations work with multiple vendors for management and security across various device types. - Only 42% of surveyed companies have a solution to proactively identify sensitive data on employee devices. - 38% of employees state that their employer lacks BYOD policies, or that existing policies are often disregarded. - There was a 300% increase in malware detections at endpoints during Q3 2024. - In 2024, a data breach involving Twilio compromised 33 million phone numbers linked to Authy accounts. - 90% of successful cyberattacks and up to 70% of data breaches originate from endpoint devices. - 54% of security experts reported that over 20% of their total endpoints were unmanaged. - 67% of Managed Service Providers (MSPs) faced AI-driven threats in the past year. - Among HR professionals who offboarded employees in the last year, 71% reported that at least one employee failed to return company-owned devices. - 65% of employees indicated they often bypass organizational security protocols to enhance productivity. - Over 90% of security incidents related to lost or stolen devices lead to unauthorized data breaches. - 13% of employees admit to being victims of phishing attacks while working remotely. - 63% of companies may have former employees retaining access to organizational data. - 62% of employees acknowledged transferring company intellectual property to personal devices. - 59% of stolen company-owned devices contained sensitive information. - Gartner estimates that shadow IT accounts for 30-40% of IT expenditures in large organizations. - 80% of employees engage in shadow IT activities. - 76% of small and medium-sized businesses (SMBs) believe shadow IT poses a security risk. - 58% of SMBs have encountered significant shadow IT initiatives without the knowledge of their official IT departments. - 30% of IT leaders cite information security as the primary challenge to adopting BYOD policies. - The prevalence of shadow IT has surged by 59% due to remote work. - 70% of employees using ChatGPT in the workplace do so without employer knowledge. - 32% of remote and hybrid employees use applications or software not sanctioned by IT. - 59% of organizations have experienced data loss due to cloud-based shadow IT. - ChatGPT is the most frequently used unauthorized application among employees. - By 2027, it is projected that 75% of employees will acquire, modify, or create technology beyond IT's visibility. - The trend of paying ransoms has increased; over 47.8% of companies chose to pay in Q3, rising to 59.6% in Q4. - Tanium raised USD 300 million in Series G funding, resulting in a valuation of USD 9 billion. - Cybereason secured USD 275 million in Series F funding. - SentinelOne acquired Attivo Networks in a transaction valued at USD 616 million.