Send Invisible Messages

FontCode has the advantage of moving between digital and physical mediums, which could have specific applications in high-stakes espionage. And the researchers note that FontCode messages can be additionally encrypted if the sender and receiver agree on a key for reordering whatever data is embedded in a given text. Plus, the technique’s more mainstream uses wouldn’t be impacted by the potential that a scanner could discover the presence of the data—since it wouldn’t be a secret in the first place that more information was stored there.