Nothing’s DKIMpossible – Manually Verifying DKIM, a CTF Solution, and Implications

By: Dr Tristan Jenkinson Introduction I have recently been taking part in a capture the flag challenge focused on email forensics – see for example an article that I put out on LinkedIn here. The competition completed last week and I am very happy to have finished in third place. One of the challenges involved … Continue reading Nothing’s DKIMpossible – Manually Verifying DKIM, a CTF Solution, and Implications