How do I verify a bitcoin transaction is legit?

In the realm of cryptocurrency, verifying the authenticity of a Bitcoin transaction is crucial for both security and trust. Could you elaborate on the steps one should follow to validate a Bitcoin transaction as legitimate? Are there specific tools or software that aid in this process? Additionally, what are the key indicators that signal a transaction is genuine and not a fraudulent attempt? Understanding the verification process is essential for any individual engaging in Bitcoin transactions, so I'm keen to learn more about the necessary measures to ensure the integrity of my financial endeavors.