What needs to be changed in the logo?

Question

Logos

Hello, I decided to draw a logo on the topic "Cybersecurity".
1) Made several options.
Your opinions on what you like and what you don't. What needs to be fixed. In general, I look forward to comments.
PS: My opinion is that everything is fucking terrible.
2) The logos all turned out to be of different sizes, and not all of the 1st as originally planned)) What sizes are most often of interest to potential customers? If there is no preferred size.

Answer 1

Logo on the theme "Cybersecurity"... what do you like?

No. 6 - a logo for a company that investigates incidents in the field of information security and specializes in thermorectal cryptanalysis (I will not talk about two chairs, there is only one here).

1. Add a question mark to the center of the shield (to emphasize the focus on investigations).
   
2. It is necessary to make the cross of the sword a little more authentic, otherwise if the picture is reduced, then it will not be visible.
   
3. Add some contrast between the shades of blue so that the details don't blend in.
   
4. Make a line along the edge of the shield of the same width.
   
5. Redraw in SVG so as not to depend on the size and to make signs on buildings, engraving on merch, etc. according to the vector.
   
6. Add different logo options for different conditions of use, make mockups with business cards, notepads, bags, posters, etc. Define a clear, limited set of colors and fonts for all of this. In other words, bring it to the state of corporate identity and design accordingly. Then it will no longer be just a picture, but a serious, albeit fictional, case in the portfolio.
   

Answer 2

2 looks very much like adguard