Apple password verification showing weird characters

I recently had to reload Yosemite on my Macbook Pro Retina (Mid 2014) and after booting it up this morning and allowing a application to run, my password box looks like this.

Any help would be appreciated.

Solution 1:

The Font Database is corrupted, you can rebuild it. (NOTE: make backup before performing this)

sudo atsutil databases -remove

And then repair permissions:

sudo diskutil repairPermissions /

After it's finished restart your machine.

Solution 2:

That looks like font corruption. I'd run the "standard toolkit"

• Fix permissions, Verify & if necessary Repair disk, using Disk Utility.

• Reset Home folder permissions & ACLs using OnyX - Maintenance tab/permissions, tick the box at the top then Execute.

• Update to [or re-apply if already up to date] 10.10.5 using the 10.10.5 combo update, not the delta from App Store.