In a 2017 [[Internet-Draft]], Martin Thomson argues that Postel's robustness principle actually leads to a ''lack'' of robustness, including security.<ref>{{cite IETF |title=The Harmful Consequences of Postel's Maxim |last=Thomson |first=Martin |year=2017 |month=October |url=https://tools.ietf.org/html/draft-thomson-postel-was-wrong-02 |publisher=[[Internet Engineering Task Force|IETF]] |accessdate=January 15, 2018}}</ref>
In 2018, a published paper toon the[[privacy-enhancing annualtechnologies]] Privacy Enhancing Technologies Symposium (PETS)<ref>https://petsymposium.org</ref>,by Florentin Rochet and Olivier Pereira showshowed how to exploit Postel's robustness principle inside the [[Tor (anonymity network)|Tor]] [[Onion routing|routing protocol]] to compromise the anonymity of onion services and Tor clients.<ref>{{cite journal | url = https://petsymposium.org/2018/files/papers/issue2/popets-2018-0011.pdf | title = Dropping on the Edge: Flexibility and Traffic Confirmation in Onion Routing Protocols | authors = Florentin Rochet and Olivier Pereira | journal = Proceedings of the Privacy Enhancing Technologies Symposium | issn = 2299-0984 | publisher = De Gruyter Open | year = 2018 | issue = 2 | pages = 27–46 }}</ref>
