No single solution can be considered as 'tamper proof' and very often multiple levels of security need to be addressed in order to reduce the risk of tampering. Some of those considerations may include the following:
- Identifying who potential tamperers might be and access what level of knowledge, tools, materials, etc. might be available to them.
- Identify all the feasible methods of unauthorised access into a product, package or system and in addition to the primary means of entry, also consider secondary or 'back door' methods.
- Determine ways to control or limit access to products or systems.
- Improving tamper resistance by making tampering more difficult and time-consuming.
- Include tamper-evident features to assist in identifying tampering.
- Educate people on what to watch for that will indicate evidence of tampering.
- Length of time available for tampering, particularly in transit, so that anyone intending to tamper with tamper resistant products do not have a window of opportunity to do so. This will make it more difficult for them to have the time to open the packaging, examine or remove items.
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