John Opdenakker

Enumeration risks in password managers - not a good look.

6 months ago 5 min read Infosec cybersecurity password password manager Security

I'm not a LastPass user but this tweet from Sean Wright caught my attention. Just as I thought… LastPass considers a user enumeration issue to be an informational issue (and hence not interested)

A look back at 2021

a year ago 2 min read

It has become a tradition that I publish a review at the end of each year. Unlike previous years I really didn't set any goals at the end of last year because 2020

Creating a security culture - awareness is not enough

a year ago 3 min read security culture Infosec awareness

For Cybersecurity Awareness Month 2019, I published a daily blog series especially for non-tech users. I was thinking about writing another - shorter - security awareness related series this October. I deliberately used

Secure account creation cheat sheet

a year ago 5 min read Infosec awareness

I am looking for a way to reach more people and help them improve their security. Hopefully the cheat sheets I'm about to create are useful and will be shared outside the information

Here's how you can become member of my website.

a year ago 1 min read

My blog runs on Ghost. For some time it has a members feature. Last week I decided to enable it on my website. The reason? To offer interested people a way to get