Operation Archives

Tech Optimizer

September 1, 2026

Autoscaling Lakebase Postgres

Choosing a database instance size without prior knowledge of the workload can lead to inefficiencies and excessive compute usage. Lakebase Postgres addresses this with an autoscaling feature that eliminates manual sizing, utilizing in-place VM resizing and a monitoring algorithm for CPU, memory, and working set size. Lakebase Postgres separates compute and storage layers, allowing independent resizing of compute nodes without affecting the database. The autoscaling algorithm relies on three signals: CPU load (cpuGoalCU), memory use (memGoalCU), and compute-cache working set size (lfcGoalCU). The CPU load is monitored every five seconds, aiming to maintain it at or below 90% capacity. Memory usage is tracked at two frequencies: overall memory every five seconds and Postgres-specific memory every 100 milliseconds, with a goal to keep usage below 75% of allocated RAM. The compute cache evaluates active data access efficiency, adjusting size based on workload. The working set is estimated using a modified HyperLogLog algorithm that records timestamps for page accesses, allowing for distinct page estimates over various time frames. The algorithm projects future working-set growth to allocate sufficient cache while capping it at 75% of RAM. Resizing the compute involves four components: the autoscaler-agent, vm-monitor, Kubernetes scheduler, and NeonVM. Scaling up occurs when any of the three goals indicate a need for more resources, while scaling down includes verification to ensure sufficient memory remains for operations. Timely adjustments in both directions are prioritized to minimize costs.

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.

AppWizard

August 31, 2026

Fake dating apps are being used to target Android users: How the new cyber scam works

India's cybercrime authorities have warned about the misuse of dating and adult-themed advertisements on social media platforms like Instagram and Facebook, which are being exploited by criminals to distribute malicious Android applications. These ads redirect users to external websites where they are prompted to download APK files, bypassing security measures of trusted app stores. The Indian Cybercrime Coordination Centre (I4C) has identified several malicious applications, including Night Play, Reloop, Kyss, Vimo, Rivo, Nexo, and Vixa, and cautions against installing unfamiliar applications promoted through unsolicited ads. These apps may request sensitive permissions, such as access to SMS messages, contacts, photos, device storage, and Accessibility Services, which can allow fraudsters to access valuable information. Compromised devices can lead to financial fraud by intercepting OTPs and other verification details. The I4C recommends using trusted app stores, keeping Google Play Protect active, reviewing app permissions, and being cautious with social media ads. If a suspicious app is installed, users should restart their phone in Safe Mode to uninstall it, disable its permissions if necessary, and consider a factory reset if removal fails. Users who suspect fraud are encouraged to report incidents promptly.

AppWizard

August 28, 2026

Google clamps down on Android app RAM usage amid AI memory crisis — developers have until February 2027 to adapt to new memory-optimizing rules

Google has introduced new guidelines to improve memory management for Android applications due to a shortage of memory, requiring developers to reduce their apps' memory usage by February 2027. Smartphone manufacturers are responding to memory shortages by decreasing the memory in devices, with many entry-level smartphones now featuring only 4GB instead of the previous 6GB to 8GB. Microsoft is also optimizing Windows 11 for devices with 8GB of memory to ease the need for upgrades.

Winsage

August 28, 2026

Windows on Arm just hit 7,000 compatible apps. It’s still not enough

Windows on Arm offers energy-efficient performance with extended battery life, minimal heat generation, and quiet operation. However, compatibility issues arise as most applications are designed for x86/x64 systems, making it difficult for Arm-based systems to run them effectively. A significant resource, the "Works on Windows on Arm" website, lists over 7,000 apps and games that support Arm architecture, including popular applications like Adobe Photoshop and Firefox. Microsoft plans to launch Arm-based computers from major manufacturers, but the number of compatible apps is still a small fraction of those available for traditional Windows systems. For non-native Arm applications, Microsoft provides an emulation solution through Prism in Windows 11, though this does not perform as well as native support. Gamers face challenges with current Snapdragon laptops, which struggle to deliver a smooth gaming experience, and the existing app offerings do not meet the gaming community's needs.

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.

AppWizard

August 27, 2026

Google tells Android app developers to cool it on memory use, or else

Google has announced new memory-usage restrictions for Android applications to address the ongoing RAM crisis. These restrictions require developers to comply with new memory constraints to ensure smoother operation across devices. The initiative coincides with the rollout of Android 17, which is being introduced on devices like the Pixel 11 Pro and 11 Pro XL, both of which have less RAM than previous models. Developers must consider varying RAM configurations, ranging from 4GB to over 16GB. Applications that exceed the memory limits may experience reduced performance, slowdowns, or termination, and may face diminished visibility on the Google Play Store. These memory limits will take effect in February 2027, providing developers time to adjust their applications.

Tech Optimizer

August 27, 2026

This antivirus blocks viruses and ransomware without slowing your PC down

ESET NOD32 Antivirus is an antivirus solution designed to protect Windows PCs from various threats, including viruses, spyware, rootkits, and zero-day exploits, while maintaining system performance. It offers a one-year license for a competitive price and is recognized for its effective threat detection and minimal impact on system resources. Key features include real-time scanning, a Ransomware Shield that blocks file-locking attempts, advanced artificial intelligence for identifying new threats, and an anti-phishing feature that prevents access to fraudulent websites.

AppWizard

August 27, 2026

Google’s upcoming app memory limits could help budget phones run smoothly, but at what cost?

Google will implement new app memory limits for Android applications and games on the Play Store, starting in February 2027. Specific per-app memory limits will be based on the total RAM available on each device, with more lenient limits for games compared to standard applications. Google is also introducing minimum optimization requirements for faster loading and efficient memory use, and developers are encouraged to implement automatic sign-in features for users upgrading from older devices. To assist developers, Google will provide tools in the Play Console for monitoring memory consumption, tracking crashes, and analyzing code to ensure compliance with the new standards.

Tech Optimizer

August 26, 2026

AVG Antivirus Review 2026: Is the Free Version Enough?

AVG AntiVirus Free has an overall rating of 4.2 out of 5 stars, with specific scores of 4.7 for protection, 4.3 for performance and features, and 3.5 for customer support. The software is available for free or can be purchased starting at .88 for the first year, with pricing verified in August 2026. It achieved a 99.77% malware detection rate with only four false alarms and offers features such as real-time protection and Ransomware Protection. However, customer support is rated lower, and there are upselling prompts after scans. AVG is owned by Gen Digital and has been in operation for over 35 years, originally founded as Grisoft in the Czech Republic. The free version includes essential features like File Shield, Behavior Shield, Web Shield, Email Shield, and Ransomware Protection, while some features like Enhanced Firewall and Fake Website Shield are exclusive to paid versions. AVG's performance on Windows 11 has been validated by independent tests, scoring 6/6/6 in AV-TEST and achieving a 96.3% offline detection rate in AV-Comparatives. The software is available across multiple platforms, including Windows, Mac, Android, and iOS. AVG's customer support includes email and phone options, with a reasonable response time. The software is safe to install when downloaded from official sources, and it has been recognized for its effectiveness in malware detection.