About SOSEC
SOSEC publishes security research and builds practical browser tools.
What you can find here
Research articles
Vulnerability analysis, security incident investigations, and comparisons of technologies and products.
Browser tools
Decode JWTs, format JSON, inspect URLs, calculate hashes and compare text.
Analysis workspace
Paste an email, link, log or checksum list, or select a file. Inspect the parsed content and compare checksums on one page.
Research and data
Research and corrections
Articles link to official advisories, source code, papers and incident records, and explain the reasoning behind their conclusions. We state test conditions and identify unverified inferences. Revised articles carry an updated date.
Your data when using tools
Appearance follows your system by default. Choosing Light or Dark saves that preference; choosing System removes it.
Tools and the analysis workspace process input in your browser, without uploading text or files, executing files, or visiting URLs being examined. Copying, downloading and opening links are your actions. External sites apply their own data policies.
Site access logs record the path, status, response size, elapsed time, connection address and request ID, excluding query-parameter values. Hosting and network providers may keep separate access records.
Contact and feedback
For corrections, send the article link and passage. For tool issues, include the steps, browser version and a redacted example. Do not send real keys, passwords, session tokens or sensitive files.