For under $100, compact hardware can turn a shipped package into a
   Trojan horse for attacks.
   [1]https://arstechnica.com/information-technology/2019/08/hack-in-the-b
   ox-hacking-into-companies-with-warshipping/

References

   1. https://arstechnica.com/information-technology/2019/08/hack-in-the-box-hacking-into-companies-with-warshipping/