A theft-prevention anchoring device is an apparatus that secures a bag to a secure structure. The apparatus includes an anchoring band, a band fastener, and a security cable. The anchoring band houses the security cable and protects the bag from any damage. The anchoring band also provides a style according to the preferences of a user. The band fastener attaches a first band end of the anchoring band with a second band end of the anchoring band so that the anchoring band may loop around the bag and the secure structure. The band fastener includes a first interlocking piece and a second interlocking piece. The first interlocking piece is engaged to the second interlocking piece. Moreover, the band fastener is configured to generate a loud audible sound as the first interlocking piece is disengaged from the second interlocking piece. The security cable provides the structural integrity for the apparatus.