XChat from X: encrypted messenger for iPhone https://sudonull.com/xchat-from-x-encrypted-messenger-for-iphone
Learn about the launch of XChat — a new messenger from Elon Musk with end-to-end encryption, calls, and data protection. Details on features, requirements, and privacy risks. Read the analysis to choose a secure chat.
2FA saves 85% of X accounts from botnets https://sudonull.com/2fa-saves-85-of-x-accounts-from-botnets
Analysis of a real botnet: how two-factor authentication stopped 85% of attacks on X. Facts, statistics, and recommendations for protecting credentials. Learn why 2FA is mandatory in 2026.
X Square Robot robots clean homes: service in China https://sudonull.com/x-square-robot-robots-clean-homes-service-in-china
Chinese startup launched a cleaning service with humanoid robots Wall-B for $22. Learn how AI is mastering household chores and how this will change the cleaning market.
X.509 certificates: ASN.1 and generation https://sudonull.com/x-509-certificates-asn-1-and-generation
Breakdown of X.509 structure, DV/OV/EV types, trust chains. openssl, keytool, certbot commands for middle/senior dev. Create your own PKI — instructions inside.
Russian-language AI for X-ray analysis: assembling ViT + ruGPT-3 model https://sudonull.com/russian-language-ai-for-x-ray-analysis-assembling-vit-rugpt-3-model
Practical guide to creating a multimodal AI model for generating medical reports in Russian. Study the architecture, data preparation, and training.