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The Red Cross was left red-faced when their social media specialist Gloria Huang released a personal tweet on the company's Twitter profile by accident.
The tweet was noticed and taken down after an hour, but it had already been on the American Red Cross Twitter feed for some duration.
The social director of the organization, Wendy Harman, deleted the message following calls in the middle of the night. Huang later posted a message on her personal Twitter account to apologize -- blaming the error on her novice use of social media platform organizer Hootsuite.
Blogger Jason Roe pointed out a flaw in the Ryanair website that made it possible for someone to book a flight and not be charged for it. Although the writer did not book a free flight himself, he wanted the error to be known -- and therefore wrote about the error in a post on his personal blog.
How did Ryanair react? In a priceless way more suitable for a juvenile Facebook row.
The Guardian is a well-respected news source in the UK, but it may wish to be more careful with what it re-tweets.
Screenshot taken earlier this year.