The HN title says it was a "coding error" but the article title is "Bank accidentally deposits $176 million into people’s accounts on Christmas Day" and the art

The HN title says it was a "coding error" but the article title is "Bank accidentally deposits $176 million into people’s accounts on Christmas Day" and the article does not say it was a software error: "The bank said the duplicate payments were caused by a “scheduling issue” that has now been rectified." It could have been a software bug but it could also have been a human error.