Problems: some private Flickr photos were accidentally made public

We have a new edition of The Trouble Repor(t). The subject this time? Flickr! An unspecified number of private photos on flickr were accidentally made public by the flickr service. Yahoo claims this issue affected a "very very small" number of people so instead of making a public announcement, they contacted affected people directly. The Flickr letter sent to affected customers seems to point to a specific software bug that caused this.

One the people affected published his story at Search Engine Round Table and Marketing Land.

More people affected by this posted about it online, there's a few threads on this topic in the Flickr Help forums.

More/via The Verge.

We are using Flickr for the Readers Flickr Pool but all the pictures published in the Flickr Pool are by definition and by existence public, so the Flickr Pool was not affected. In other words, you can't publish a private picture to a flickr pool.