Security research, tutorials, and updates from the HackerSavanna team.
A zero-day disclosure is a race against the clock to get an unpatched, unknown vulnerability fixed before attackers find it too. Here is exactly how responsible disclosure works, from Heartbleed to Log4Shell.
A time-boxed contest trades open-ended access for a hard deadline and a live leaderboard. Here is how Pwn2Own, DEF CON CTF and live hacking events actually work, and what it takes to run one well.
A bug bounty is a standing offer to pay anyone who finds and responsibly discloses a real vulnerability. Here is exactly how the model works, from scoping to payout, across web, API, cloud, mobile, network, web3 and IoT.
Why raw CVSS is the wrong sort key, a working EPSS-weighted priority formula with a defensible asset criticality score, dependency and container scanning code, an SLA framework, and what a leadership report should actually contain.
A system prompt is not a security boundary. The full OWASP LLM Top 10, real public incidents, indirect injection and insecure output handling with code, CVSS scoring guidance for AI findings, and the live-tested fix that actually held up.
A High-severity authentication bypass on HackerSavanna's own platform, found and responsibly disclosed by researcher Sylvester Jusu, just earned him premium access to the AfricaHackon Dojo, courtesy of Cyber Guard Africa and AfricaHackon.
A Critical Firestore security misconfiguration, responsibly disclosed and fully fixed, just earned HackerSavanna researcher Sylvester Jusu a fully funded scholarship to AfricaHackon Academy Cohort 7, courtesy of Cyber Guard Africa and AfricaHackon.
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