isolation Archives

Tech Optimizer

September 1, 2026

Connecting My LangGraph AI Agent to Postgres

A stateful LangGraph agent was developed to streamline a 15-minute booking process, featuring a user-friendly Streamlit UI and a backend powered by a Postgres database. The agent responds to customer queries, calculates service pricing, manages service acceptance, suggests time slots, and confirms appointment details. It operates in two modes: in-memory for rapid testing and Postgres for persistent storage. Testing can be done locally using Docker, which simulates a Postgres environment, or with a hosted Postgres instance. The project includes a docker-compose.yml file to initiate a PostgreSQL 16 container, allowing the application to connect to the database. Data persistence is ensured through Docker volumes, and the application can be run with specific commands after setting up the environment variables. The system has been tested successfully, demonstrating its ability to manage bookings and maintain data integrity across sessions. Future enhancements are planned to improve the booking workflow and integrate additional communication channels.

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 30, 2026

Best PC, PlayStation, Xbox Games Named by Gamescom – List of Winners in Different Categories Revealed

Capcom's upcoming title, Onimusha: Way of the Sword, won multiple awards, including Best PlayStation Game and Best Gameplay. CD Projekt RED received accolades for their booth design, merchandise, and the trailer for the remaster of The Witcher 3: Wild Hunt, along with its story expansion "Ballad of the Past." The Best PC Game award went to Total War: Warhammer 40,000. Other awards included Best Xbox Game for Forza Horizon 6, Best Audio for Alien: Isolation 2, Most Engaging Game for Wanderburg, Most Epic Game for Tides of Annihilation, Most Heartfelt Game for Finding Polka, Best Nintendo Switch 2 Game for Rayman Legends Retold, and Best Mobile Game for Where Winds Meet. The Best Trailer (Audience Choice) was awarded to The Witcher 3: Wild Hunt Remastered & Songs of the Past DLC.

AppWizard

August 30, 2026

Total War: Warhammer 40,000 wins best PC game at Gamescom

Total War: Warhammer has evolved into a celebrated strategy game on PC, and Space Marines have been included in the game. It was honored as the best PC game at this year's Gamescom, marking Sega's third award of the year. PC Gamer's Fraser Brown praised it as the standout experience of his year after just an hour of gameplay. Gamescom winners are selected by a jury of gaming professionals and community votes, indicating broad appeal. The Warhammer 40,000 universe fits well within the Total War framework, promising an exhilarating experience with epic battles.

Winsage

August 30, 2026

5 Windows Security Settings You Should Never Skip Over

Microsoft has over 1.4 billion active devices each month, making it a target for security vulnerabilities. Users can enhance their security using built-in features without third-party software. Key security measures include: - Windows Hello: Enables secure login via PIN or biometric methods. Activation steps: Settings > Accounts > Sign-in options > Select method > Set up. - Windows Firewall: Protects against malicious internet traffic. Activation steps: Settings > Privacy & security > Windows Security > Firewall & network protection > Toggle on Microsoft Defender Firewall for Public, Domain, and Private networks. - Microsoft Defender: Pre-installed antivirus solution. Ensure it is operational by enabling Real-time protection and Controlled folder access. Activation steps: Settings > Privacy & security > Windows Security > Virus & threat protection > Manage settings. - Microsoft Account: Linking a Microsoft account provides benefits like cross-device syncing and advanced security features. Steps to link: Settings > Accounts > Your info > Sign in with a Microsoft account. - Device Encryption: Protects sensitive information using BitLocker. Activation steps: Settings > Privacy & security > Device encryption > Toggle on. - Find My Device: Allows users to locate their device if lost. Activation steps: Settings > Privacy & security > Location > Toggle on Location services > Find my device > Toggle on Find my device.

Winsage

August 26, 2026

Microsoft Intune Remote Help Supports Unattended Windows Devices

Microsoft has enhanced its Intune Remote Help feature, allowing IT teams to access unattended Windows devices without user approval. This update eliminates delays caused by the need for user authorization, enabling technicians to troubleshoot devices even when users are unavailable. The unattended support feature provides secure access for help desk personnel, ensuring session isolation and user awareness. It requires a dedicated permission that must be assigned through custom role assignments, as it is not included in any built-in Intune roles. Organizations are advised to define custom roles, restrict access to specific device groups, and review Remote Help logs for accountability.

Tech Optimizer

August 26, 2026

How to Protect Against Ransomware: 13 Steps [2026]

Global ransomware attacks increased by 0.8% quarter-over-quarter in Q2 2026. The group Qilin has 279 confirmed victims, maintaining its position as the leading threat actor for four consecutive quarters. The rival group The Gentlemen saw a 62% increase in victims, reaching 269. Checkpoint Research's report indicates a shift in the ransomware landscape, challenging the narrative of declining attacks. IBM's analysis shows breaches within supply chains and third-party vendors have quadrupled over the past five years. Effective ransomware protection requires administrative access to endpoints, firewalls, and backup systems, along with specific software versions and tools. The 3-2-1-1-0 backup strategy is recommended, emphasizing offline, immutable backups. Organizations should implement multi-factor authentication (MFA) across all access points and actively patch known vulnerabilities. Network segmentation is crucial to limit ransomware spread, and canary files can provide early warnings of attacks. Regular phishing simulations and a well-documented incident response plan are essential for preparedness.

Tech Optimizer

August 24, 2026

Fake Microsoft security scans trick victims into uninstalling their antivirus

A surge of fraudulent websites claiming to verify antivirus software functionality has emerged, using the name SysScan and misleadingly asserting that Windows no longer supports third-party antivirus solutions. These sites conduct fake security scans, gather personal information, and set up a refund scam. Eleven such websites were found hosted on a single server, executing similar deceptive tactics. They can access basic browser data but cannot conduct genuine security scans. Microsoft continues to support third-party antivirus software, and legitimate refund processes do not require uninstalling security tools. The scams instruct users to remove their antivirus software to facilitate further manipulation and to collect information about the antivirus in use. The customer information forms collect extensive personal data and are designed to send this information to a Telegram bot API. Victims are promised a refund call after submitting their information, which is part of the scam's manipulation. Signs of such scams include claims of deep problems with the computer, consistently negative diagnostic results, requests to uninstall antivirus software, and demands for banking information. If affected, victims should disconnect from the internet, remove remote-access tools, and contact their bank. The hosting IP address for these sites is 157.230.180.90, with multiple associated domains listed.

AppWizard

August 24, 2026

This week in PC games: Gamescom and GTA 6 fight for our attention, but don’t forget Folk Emerging, MGS4 and the horror game about balancing a cake

This week marks the arrival of Gamescom, featuring a highly anticipated documentary on GTA 6 set to stream on August 27th via Rockstar and Netflix. Notable new PC releases include: - Burned Horizons (early access): A military simulation game set in a fictional 2002 war in Europe. - Money for Girls: Amortized: A horror detective visual novel by Porpentine. - 1666: Amsterdam (early access): A time-bending witch game from Patrice Désilets. - Aliens: Fireteam Elite 2: A cooperative game for 1-4 players. - Astral Court DX: A bullet hell game with 189 levels. - Blood Dungeon: A frantic platformer by the creators of Nidhogg. - Sokogram: A hybrid puzzler with sokoban mechanics. - Western Rye (early access): A survival game combining cowboy simulation and zombie encounters. - the cabin game (early access): A multiplayer experience in a haunted cabin. - Lou's Lagoon: An adventurous platformer on an archipelago. - Star Wars: Zero Company: A squad tactics game set in the Ahsoka era. - Metal Gear Solid: Master Collection Vol. 2: A remastered package featuring MGS4 and Peace Walker. - Resonance: A Plague Tale Legacy: An installment set on an island with light-based puzzles. - Captain Tsubasa: A return to the football franchise. - Don't Drop The Cake: A game where players balance a tray in a chaotic environment. - Alice's Gaze: A blend of autobattling and spooky mansion exploration. - A Little Age: A laid-back city-building game. The coverage approach for Gamescom this year will focus on in-depth stories rather than liveblogging, with a team on-site in Cologne and others covering news from home.