Reddit reviews Mill Aluminum High Rabbeted Threshold/Saddle with Solid Rubber Extrusion (3465MA), FH #10 x 1-1/2'' Supplied, (3-11/16'' W x 1/2'' H x 36'' L)

Contact the police.

I believe those are sign of attempted or successful forced entry with a pry bar. There is a small paint nick on what I assume is part of the door handle plate, where someone may have attempted to insert a pry bar, but the space between the door frame and lock plate was too narrow to insert the pry bar directly next to the door handle. The paint scratches bellow look like a person tried to knock a pry bar between the door and door frame, with the intent on sliding the pry bar up to the latch/lock point, but the space between the door and door frame was too narrow to slide the pry bar up to the door latch/lock. Multiple pry bars may have been attempted to be used at once. pry the door open a little, and put the next pry bar closer to the lock, and repeat the process until the pry bar is next to the door latch.

Then, with some less secure doors, the door's small 2 inch by 3 inch strike plate is secured with two 1" wood screws secured by 1 inch of 2x4, which is very easy to split and break with little effort. You seem to have an exterior metal security door that is pre-mounted to a full metal door frame that deters attempted burglary.

This is the mandatory part for other people reading this, whom have a wood framed entry door.

Reinforce your door frame with a larger strike plate!

Even if your door is solid wood, and there are no windows within 5 ft of the door, also replace the standard door hinges with security stud hinges which will prevent the door from being pushed off after removing the hing pin while the door is closed.

Use a raised lip threshold plate with a metal lip, not rubber or wood or plastic. This is to prevent a burglar from inserting a long wire hangar under the door gap, and catching the door latch.

Use this lock in a specific way. If you have a door handle on the inside like a handle lever attach the part with the ball on the end above the door handle touching near the end of the handle. This way the door handle cant be activated by catching a looped string dropped from above the door, and pulling the handle up. If the interior door handle is a round knob, attach the ball ended part of this touching the bottom of the door knob, and the swinging part of this above the knob so it drops onto the knob. This will make using a rubber tube to turn the knob from the outside much more difficult and time consuming.

Nothing is 100% secure. But time, effort, luck, and noise required to bypass a security lock system can deter a criminal. Also motion lighting. Lots of motion lighting.