Improper access control is the #3 most common security vulnerability. Learn what improper access control is, its impacts, and how to prevent it.

Information disclosure is the #2 most common security vulnerability. Learn what information disclosure is, its impacts, and how to prevent it.

HackerOne has partnered with Zoom to select EverythingALS as the Hack For Good donation option for ALS Awareness Month.

Mobile hacking has become an essential part of the bug bounty hunter’s tool belt, and no one knows the space better than Android hacker bagipro.

February is Android Hacking Month! That means new resources, new CTFs, and, of course, swag. Learn more about how to get involved.

Thanks to all who participated in our #h1415 CTF, and congratulations to our winners @p4fg and @manoelt! Here’s how it went down.

We are very excited to open the first ever HackerOne community T-shirt design contest. Like crafting a creative exploit or spinning up photoshop to create a perfect meme, we know you’ve got some amazing ideas and we want to see them. We are looking for designs that reflect the spirit of our community. This can include ingenuity, diversity and the collaborative forces that make #TogetherWeHitHarder.

Five sandbox environments of recently disclosed hacktivity reports available for anyone to test their hacking skills and see if they can replicate the same bug that was discovered. #hackon