"Every euro above €10,000 will become illegal tender," according to a post which has attracted more than 2.6 million views and which says that "cash will soon be contraband" under EU law.
In reality, the EU hasn't banned cash. It is, however, introducing a bloc-wide limit on how much you can pay in banknotes to a business, as part of a sweeping overhaul targeting money-laundering set to come into force in 2027.