Comprehensive Digital Security Rework

I need a thorough security overhaul of my digital devices. I'm based in the UK and have been lax with my digital security. I suspect a possible jailbreak and experience weird behaviors, pop-ups, and unauthorized access or data loss.

Devices to check include:
- Laptops
- iPhones
- Other mobile devices

Ideal skills and experience:
- Expertise in cybersecurity
- Experience with securing multiple device types
- Familiarity with identifying and mitigating jailbroken device risks
- Strong knowledge of security software and monitoring tools

Let's discuss this in detail to restore my trust in my devices.