Tamper Evident Seals
To detect tampering with products that contain valuables, information, and equipment, the seals most often used are tamper evident seals.
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Tamper Evident Seals are applied to file cabinets, aircraft hatches, entry doors, envelopes, cartons, electronic components and more. When this seal is removed, the security seal will immediately give a signal or self-destruct to show that the seal has been broken. Tamper Evident Seals are created to show signs of tamper evidence if it is opened after application.
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A Tamper evident seal makes unauthorized access to the protected container easily detected. Tampering includes the changes of information, product, package or system. The solutions may involve production, distribution, logistics, sale and use. Multiple levels of security are often used to reduce the risk of tampering. No single solution can be considered as tamper proof.
Before, in the field of tamper evident seals, a tamper evident seal would be used on letters, in order for the receiver to know if the letter has been opened since it was written. This was the first tamper evident seal and it was a wax seal. Some companies continue to use this on their letters and all companies use this when they use a courier as the courier pouch usually has to be destroyed to be opened.
In the area of product packaging and labeling, tamper evident seals are used more and more. It is so important for the manufacturer to know that their product has not been changed because it is not easy to identify or determine if a certain item has been tampered with. Customers hope that tamper evident design principles have the ability to save a lot of money and protect their products purchases.
A void tamper evident seal is a group of tamper evident seals that contain a hidden graphic and then will leave behind a residual message when they are peeled away. This tamper evident seal asset identification gives an extra safeguard to consumer products. It is durable and efficient to track the identity assets. Tamper evident seals detect theft and help prevent access to important documents.
Basic designs of tamper evident seals (plastic seals)
Fixed length seals – this seal has no sliding parts and it is more tamper resistant and easier to fit than variable length seals. Almost all fixed length tamper evident seal are branded and numbered for security. It is prefer to use this choice of single use security seals for transport applications.
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Padlock seals – this type of tamper evident seal is usually supplied as a completely plastic seal. Padlock seals feature the same types of tamper evident protection just like fixed length seal and variable length, it has numbering, bar coding and branding. This seal is often used on airline duty free trolleys because padlock seal can be placed over a locking part as any metal padlock would be to secure the item. In order to remove these tamper evident seals simply break using hands or wire cutters, it doesn’t require keys to open it. The Padlock seal is safe because its part of the audit trail that has sequential numbering.
Variable length tamper evident seals – this type of tamper evident seal is commonly called a pull tight seal. This variable length seal can fit into many applications like securing the neck of a bag, mail sack, chemical drums, first aid kit and fire extinguishers. It is like a cable tie that has an adjustable length. This tamper evident seal offers higher security level and audit trail due to sequential numbering, bar coding, company name and logo printed or lasered.
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