Summary The question revolves around increasing entropy in a hash function by chaining multiple calls to the same hash function. The goal is to determine if this approach can artificially increase the entropy of a 64-bit hash function, specifically a custom MD5 implementation, to a higher bit length such as 96-128 bits or even 256 … Read more
Summary A Google Apps Script continued running even after the user deleted the project, removed triggers, and emptied the trash. The script kept monitoring Gmail and sending Google Voice texts because an OAuth-granted authorization token was still active on the user’s Google Account. Deleting the script does not revoke its previously granted permissions, so the … Read more
Summary This postmortem analyzes a failed attempt to reverse‑engineer and modify an Android game app using a pre‑packaged GDA project containing altered smali classes, hook logic, and automated repack/sign tooling. The incident highlights how complex, fragile, and security‑sensitive such workflows are, and why engineers often underestimate the risks and failure modes. Root Cause The core … Read more
Summary Malware escaping from a VirtualBox virtual machine is possible but rare in practice. It requires exploiting specific vulnerabilities in the hypervisor or misconfigurations in the host system. Proper isolation and security practices significantly reduce this risk. Root Cause The root cause of malware escaping a VirtualBox VM lies in: Hypervisor vulnerabilities: Exploitable flaws in … Read more
Summary Web scraping Dexscreener using Selenium and Chrome WebDriver fails due to immediate server disconnection. The issue arises from anti-bot mechanisms detecting automation, causing the session to terminate. Root Cause Anti-bot detection: Dexscreener identifies automated browser sessions via Selenium. Automation flags: Chrome WebDriver exposes automation flags, triggering disconnection. IP blocking: Repeated requests from the same … Read more
Summary The issue of “com.docker.socket will damage your computer” persisting even after uninstalling and removing all related Docker threads and files is a common problem faced by many Mac users, including those with M1 Air devices. This persistent error message is a cause for concern and frustration, as it continues to appear after restarting or … Read more
Summary The issue at hand is the failure to decrypt a JSON Web Encryption (JWE) token received from the /userinfo endpoint of France Connect Plus using a private key in a .NET Framework 4.7 application with C# 5. The decryption process fails with a SecurityTokenDecryptionFailedException, indicating that no keys were tried for decryption. Root Cause … Read more
Summary The question revolves around Github’s rules and policies regarding connecting to their continuous integration (CI) machines via SSH for debugging purposes. The inquiry also touches on the potential for misuse of these CI machines, such as creating botnets. Understanding Github’s security measures and terms of service is crucial to avoid any account or repository … Read more
Summary The question revolves around Oracle APEX and its authentication mechanism, specifically focusing on the number of attempts a single user can make in a day to receive an OTP (One-Time Password) for login verification on a free account basis. This inquiry is crucial for integrating such a mechanism into an application, ensuring security and … Read more
Summary The issue at hand is a TLS certificate verification failure on a Raspberry Pi running Debian 9, where the system is unable to verify the server’s certificate due to a missing root CA certificate. Despite extracting and installing the intermediate certificate, the verification process still fails. Root Cause The root cause of this issue … Read more