Stick up, brand new, security screw doesn't seem secure: Phillips

I just got 3 Sick Up cams, they all come with a packet labeled Security Screws/ Mounting Screws/ Anchors. The mounting screws are longer, but the smaller security screws are just a strange looking Phillips/ cross-head (not a Torx 15 type as i was expecting?). It does seem like a Phillips with a squared out center, AND i was able to remove the 'security' screw from he cam with a Phillips screwdriver from my kitchen drawer! Have i got the correct screws? I tried to take a photo