Samsung committed a tech faux pas on Wednesday when it issued a promotional tweet from an iPhone, the flagship handset made by a smartphone market arch rival.

Whoever posted the short missive to Samsung's account used an iPhone, an almost unforgivable offense in the eyes of diehard fans.

Brand ambassadors for a number of large smartphone makers have been caught touting products and services from iPhone on a multiple occasions, but slip ups from company officials are a rarity.

In 2013, for example, tennis star David Ferrer used his iPhone to send a laudatory tweet about his Galaxy S4.

That same year, former T-Mobile CEO John Legere extolled the Galaxy Note 3, but did so from iPhone.

Simply they use the best for their personal life and for their work: the iPhone

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