The UK Ministry of Defence has been caught out again by a schoolboy error – not knowing how to properly redact a PDF. As Naked Security has explained before, if you ...

If you’re an organisation that is making public an internal document, you best make sure that you have deleted or blacked out any personal, confidential or actionable information. The act of obscuring ...

There are times when a PDF truly needs encryption—for instance, if it contains sensitive information and someone just emailed it to you (let’s hope they used another communications method to send you ...