An anchoring device and system for securing portable objects is disclosed. The anchoring device may be configured for engagement with a lockable container or structure having an articulating, lockable member. The system may include an anchoring device and a securing device, the securing device (e.g., a cable, chain, etc.) being configured to engage with portable objects and be secured by the anchoring device. In some aspects, an anchoring device may be for engagement with a lockable vehicle door or tailgate can include one or more anchoring members and at least one restraining member. In some aspects, the securing member may be a cable or chain having a closed loop that can be engaged with a portable object and a restraining portion of the anchoring device, and when the anchoring device is engaged with a lockable container or structure, the portable object may be secured thereto.