When using a Microsoft account with Skype, it's a great idea to enable two-step verification. Two-step verification is the best way to prevent your account from getting hacked.
You can enable two-step verification on https://account.live.com/proofs/Manage.
Once enabled, you'll have to use an app password instead of your regular password to add your Skype account to Sameroom.
To generate a secure one-time app password, go to https://account.live.com/proofs/AppPassword and follow instructions.
Use your app password (copy and paste) to sign in with Skype on Sameroom.