How can I prevent theft, diversion or tampering?
The most secure way would probably be to have trusted armed guards accompany the goods. That, however, would be expensive.
There are a variety of passive UHF RFID seal tags that allow you to seal containers and be alerted if a seal were broken without authorization. Yeon Technologies, in Taiwan, offers several e-seals (see RFID-Enabled Electronic Seals), as do CAEN RFID (see CAEN RFID Intros New Specialty UHF RFID Tags, UHF E-Seal, UHF Reader Gate/Portal) and a Czech company called HL (see UHF RFID Secure E-Seal).
Shenyang Shining Fortune Container Seal offers passive RFID container seals (bolt seals, cable seals, plastic seals and more), while HID Global recently introduced a new tamper-evident tag (see Tamper-Evident Tag Transmits Whether or Not Seal Breaks).
—Mark Roberti, Founder and Editor, RFID Journal
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