10 principais hamayanhamayan.com concorrentes

tryhackme.com

TryHackMe is a free online platform to learn cyber security through hands-on labs and exercises, accessible entirely in your browser—perfect for all skill levels.

infosecwriteups.com

A collection of write-ups from the best hackers in the world on topics ranging from bug bounties and CTFs to vulnhub machines, hardware challenges and real life encounters. Subscribe to our weekly newsletter for the coolest infosec updates: https://weekly.infosecwriteups.com/.

cwsisecurity.com

This blog explores how Microsoft’s security ecosystem can give IT teams the visibility and control they need to keep AI adoption safe.

atcoder.jp

AtCoder is a programming contest site for anyone from beginners to experts. We hold weekly programming contests online.

whoisxmlapi.com

WhoisXML API offers domain, WHOIS, IP and DNS data feeds, APIs, and research & monitoring tools for greater enterprise security and data-driven business.

blog.nflabs.jp

FFRI × NFLabs. Cybersecurity Challenge 2025 こんにちは、研究開発部の末廣と迫本です。本記事では、株式会社ＦＦＲＩセキュリティとNFLabs.が合同で開催したFFRI × NFLabs. Cybersecurity Challenge 2025を紹介します。また、NFLabs.が選定したWriteup賞を発表します。 株式会社ＦＦＲＩセキュリティが選定したWriteup賞は、株式会社ＦＦＲＩセキュリティ側の発表記事をご覧ください。 今回から、本コンテストの出題問題や解説等を公開しています。そちらもぜひご覧ください。 コンテスト結果 NFLabs.選定W…

codeforces.com

codeforces. programming competitions and contests, programming community

vnhacker.substack.com

Click to read Thái | Hacker | Kỹ sư tin tặc, by Thai Duong, a Substack publication with tens of thousands of subscribers.

knostic.ai

Discover how a malicious MCP server can hijack Cursor’s internal browser, steal credentials, and compromise developer machines.