user-scanner Emerges as a Modern OSINT Alternative to Holehe in 2026

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Security researchers and OSINT practitioners have long relied on single-purpose tools like Holehe for email registration checks, but these legacy utilities lack cross-platform correlation and advanced pivoting capabilities. A new Python-based tool called user-scanner aims to address these gaps by combining email and username scanning across more than 380 platforms in a single engine. The tool features an automated cross-scanning mode that recursively extracts linked handles, profile URLs, and secondary email addresses from initial scan results. It also integrates with Hudson Rock's infostealer API to correlate targets against known malware-exfiltrated credential logs. Built on httpx and curl_cffi, user-scanner supports TLS fingerprint impersonation, proxy rotation, and output formats including PDF, JSON, and CSV.

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Developer Compares JSON-Locked vs Design-System AI Web Tool Generation Side by Side

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ProgrammingDEV Community ·

Developer launches TraceMotive, an open-source local debugger for AI agent workflows

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ProgrammingDEV Community ·

OpenAI Partners with Cerebras to Deliver High-Speed GPT-5.6 Enterprise Inference

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ProgrammingDEV Community ·

Key Web Technologies Every Security-Minded Developer Should Understand

Modern web applications are built using a combination of technologies including web servers, programming languages, frameworks, and databases, each playing a distinct role in the application pipeline. Popular platforms covered include Java, ASP.NET, PHP, and Ruby on Rails, alongside data formats like XML and backend services such as SOAP. Understanding how user input travels through these layers is considered essential for identifying where security weaknesses can be introduced. While frameworks like ASP.NET offer built-in protections against certain vulnerabilities, insecure application logic can still leave systems exposed. The article emphasizes that vulnerabilities typically stem from poor implementation and configuration rather than the technologies themselves.

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