LONDON – Popular parenting website Mumsnet reported itself to the UK’s Information Commissioner. A bug that meant users’ accounts could potentially be switched was found. This meant people could have access to other’s account details and private messages. The company confirmed to the Guardian that it had reported itself, following the incident.

A botched upgrade to the software the forum runs on meant that for three days, if two users tried to log in at the same time, there was the possibility that their accounts would be switched. Each user was able to post as the other, see their account details, and read private messages. The company doesn’t know how many user accounts were affected, but says that over the three days the bug was live, from Tuesday afternoon to Thursday morning, about 4,000 users logged in. Of that, only 14 users have reported an issue.

The news of Angela Ahrendts’s impending departure from Apple came as a surprise to many outside the company. I can only assume the same was true for people on the inside There can be little doubt that the company’s outgoing Senior Vice President Retail has made a real impact during her five-year tenure. AppleInsider provided an incisive look at how Ms. Ahrdents’s came to be at Apple, and the legacy she will leave.

While Apple does also earn money from services and other business activities, the alterations that she’s made in the stores are central to the rise of the company into being the world’s most profitable firm.  These Apple Stores have been lauded as retail successes since their very beginnings, and externally they had appeared to be doing well even before Ahrendts joined. Yet in practice, the years before her arrival were marked with problems.

There are some very slow and inefficient ways to board passengers onto an airliner. Most airlines use some variation of them. But there are also some mathematically proven efficient, optimum ways. Why don’t the airlines use those? Money. This video analysis uses great graphics and demonstrates the problem.