If you are "putting together a post" about this file—whether for a technical forum or a security blog—here are the key facts to include: What is br-init-o.exe? Official Name : HP Wolf Security / Bromium Initialization Component.
Maybe you no longer own a Brother printer, or you simply dislike background processes. Removing the legitimate version is safe but requires more than just killing the process.
Open Task Manager ( Ctrl + Shift + Esc ), find br-init-o.exe under the tab, right-click it, and select Open file location .
The file size of the authentic version is usually between 150KB and 500KB. Its digital signature should be issued by —you can verify this by right-clicking the file, selecting Properties , and navigating to the Digital Signatures tab.