It's pretty handy that when Google knows you have a flight to catch, it'll pop up little updates on your phone reminding you of when to leave and what the travel situation is assuming you're opted in .
But a letter in the Guardian today serves as a useful reminder not to put all your trust in automated notifications.
Seeking help from consumer rights adviser Anna Tims, the letter writer explains that they received an email on their phone advising them of a four-hour delay to their flight, but when they turned up at the airport, the flight was long-gone and no such delay existed.
It turns out that the notification wasn't an email but a Google Card, which can easily be mistaken for an email as it pops up in much the same way - and since it's based on information from Gmail, even says "view email" at the bottom.
But despite looking and seeming official, Cards are based on third-party information and aren't coming from your flight provider, so it's unwise to put all your faith in them.
As the writer found, blindly trusting Google can lead to major inconvenience and out-of-pocket expenses when the information turns out to be wrong, and your flight provider has no obligation to help you out if the information didn't come from them.