TruSignal was recently acquired by TransUnion. It supplies personal information in marketing lists to creditors and insurers, which use these lists to make firm offers of credit or insurance. To remove yourself from TruSignal, you must do so using Opt-Out Prescreen. You must fill out and mail their opt-out form. After this, it is not clear how long it will take them to remove your information.
Speed: 5, Slowest
Difficulty: 5, Hardest
How to Remove Yourself from TruSignal via Opt-Out Prescreen