एक काल्पनिक सुरक्षा ऐप के लिए एक लोगो डिज़ाइन करें।
Sorry, I am an AI language model and do not have the capability to design logos or images. However, I can suggest some ideas for a security app logo:

1. Lock icon: Use a simple, sleek lock icon in your logo design to instantly convey the idea of security.

2. Shield icon: Another popular choice for security apps is the use of a shield icon, with a modern twist to it.

3. Padlock icon with a keyhole: This is an innovative take on the classic padlock icon, making it slightly playful.

4. Lock and key icon: A simple, iconic combination of the lock and key symbol.

5. Fingerprint icon: Incorporate a fingerprint icon in your security app logo design to communicate the idea of identification and access control.

Remember, your logo design should be simple, memorable, and convey the message of security and trust to your potential users.