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Secure password management part 2 — Length matters, but...

Secure password management part 2 — Length matters, but...

6 years ago 4 min read Security2FAInfosecpasswordCrackinghack
This is the second post in the Secure Password management series. Read the previous one here [https://johnopdenakker.com/no-excuse-for-password-reuse/]. What's an appropriate minimum password length? When I asked  this question
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John Opdenakker
By: John Opdenakker
How most websites leak the presence of users and how you can prevent this.

How most websites leak the presence of users and how you can prevent this.

6 years ago 3 min read InfosecosintSecurityprivacy
Most websites are vulnerable to account enumeration, a technique used to discover if a user has an account on a website. The most common features on websites for which there is an account
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John Opdenakker
By: John Opdenakker
Twitter, we had the Bad and the Ugly, now it's time for the Good.

Twitter, we had the Bad and the Ugly, now it's time for the Good.

6 years ago 7 min read
After one of my previous blog posts about the Do's and don'ts of Twitter interactions [https://johnopdenakker.com/dos-and-donts-on-twitter/] I got some feedback that I focused much on the
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John Opdenakker
By: John Opdenakker
Don't leak sensitive data via public mailboxes

Don't leak sensitive data via public mailboxes

6 years ago 3 min read SecurityInfosecosinthackthreat intel
Public mailboxes are very handy. I use Mailinator [https://www.mailinator.com] regularly. But there are many, many more of them and they all work pretty much on the same premise. In this
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John Opdenakker
By: John Opdenakker
Some useful application security resources

Some useful application security resources

6 years ago 5 min read Infoseclearningappsec
This post contains a list of application security resources I regularly update.
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John Opdenakker
By: John Opdenakker
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