Adding a YubiKey to Lastpass

In the beginning of this year I got a YubiKey NEO from a colleague. As I
was already using LastPass to manage my passwords I wanted use my YubiKey as part of the two factor authentication process.

You can register your YubiKey by going to the premium “Multi-factor options” in your LastPass account settings and enabling the YubiKey option. For the two factor authentication to work you need to press the button on the YubiKey to generate a OTP (One Time Password) which will be stored with LastPass.

When I tried this for the first time I ran into a problem and got the following error: “At least one of the YubiKey tokens provided failed to validate.”. Copy and pasting this error in Google led me to a post on the LastPass support forum in which the solution was provided.

Thank you for contacting LastPass Support.

You need to set your YubiKey configuration to OTP authentication mode: … bikey-otp/

Once that is done, visit the following URL: and where it says ‘YubiKey with LastPass’, run the authenticator to make sure everything is working properly.

If no issues found, try to setup the YubiKey once again: … ntication/

Let me know how it goes.


After enabling OTP I could register my key and start using it with LastPass.

Updating the operating system on my Atari 1040STF

After finishing the drive swap mod on Atari 1040 STF I continued browsing the Atari forum’s hardware section and found a post/guide on how to update the operating software. In general, updating the OS is advisable as newer versions may contain bug fixes, security updates and increased I/O compatibility. The same goes for my Atari. The last available version for my machine, 1.04 a.k.a. Rainbow TOS, contains all of the above and is found to be faster overall.

On the Atari, the OS is stored on two or in my case six ROM (Read Only Memory) chips. As the name indicates, writing to ROM chips is not possible so they have to be replaced with chips containing the newer OS. While it is possible to buy a “ready to go” upgrade package it is also possible to go the DIY route and prepare the chips yourself. I opted for the latter as it is much more fun, educational and gives a real sense of achievement when finished.

Continue reading Updating the operating system on my Atari 1040STF