No one thinks much about cybersecurity while traveling. However, email security company Tessian warns the out of office message actually plays right into the hands of threat actors and cybercriminals. It’s a social engineering attack vector that no one thinks about. The out of office message is ubiquitous and handy. But if it includes any personal information at all — such as attending a funeral or going out of the country — attackers have all the information they need to impersonate the person who is out of the office, without the attacker having to do any real work.
If you are unavailable and a client needs contact, a colleague’s contact information can be included. The text should also indicate when it’s appropriate to contact the alternate. Some people will indicate that the contact is for urgent matters while others may offer for consistent client care.

Smugness: it’s almost impossible to dodge in an OOO. London-based poet Rishi Dastidar, whose debut collection Ticker-Tape is billed as a “maximalist take on 21st Century living”, embraces this and lets his inner show-off have free rein by penning poems for his OOOs. “Yes, the tone of these poems is a little self-satisfied – but if you have to tell colleagues you are away, why not try and do it with a little style and pizzaz?” he points out, adding that it’s also one of the few mediums where you’re guaranteed an audience. Here’s how he explained he was away in France:
I, for one, tend to forget to set my automated out-of-office (OOO) email responder and scramble to do it before the plane takes off 🙈 It’s important to inform your customers and business associates (and remind your colleagues!) that you’re away, especially if they’re expecting a prompt response.