How much damage could you do with the power to shoot cosmic rays?

Ever since I've seen the Veritasium video on cosmic particles, I was wondering how much of a threat it would pose to our current computer systems were it to be used as a weapon.

Suppose the power allows to you to shoot streams of cosmic ray from your fingers.

• It can be as intense as you want as long as it's reasonably harmless to humans.
• You can only direct the rays towards objects within your field of view or whose position you can confidently approximate, so you could target a nearby server behind walls or a plane in the sky, but not a computer on the other side of the world.
• You can use this power for as long as you like with no cooldowns or energy consumption.
• No one can observe the rays, not even yourself