The phrase "alerted them about" is not correct in standard written English.
The correct usage would typically be "alerted them to" or "alerted them of."
Example: "She alerted them to the potential risks involved in the project."
Alternatives: "notified them of" or "informed them about."
(See my suggestions on how to do better by using a password manager). They also failed to turn on an additional protection from Nest called two-factor authentication, which would have alerted them about unauthorized access with a text message.
But when the city relieved three officers of their posts after the fire, commanders complained that following the inspection schedule was all but impossible because no one ever alerted them about which buildings were under construction or demolition in their area.
Moon said South Korean officials have been closely communicating with White House officials and alerted them about the discussions that took place during his meeting with Kim, but he did not clarify whether the White House was notified before the meeting.
The film's director, Andrew Jarecki, has said in recent interviews that he had been in contact with enforcement officials in Los Angeles about his work for the last two years and indicated he alerted them about the discovered letter.
The Quaids say nobody called them to alert them about the mistake.
Letters will be sent to all potentially affected individuals alerting them about the security breach, the department said.
Then, Mr. Bennight said, he left a voice mail message at his local F.B.I. office alerting them about the comment.
In late 2010, St . Judesent a letter to doctors alerting them about data showing that the silicone coating of the Riata lead could wear away.
The police said that several people tried to alert them about the driver of the pickup truck, identified as Michael R. Gagnon, 24, of Adrian, Mich.
Additionally, United will now automatically send daily reports to airport managers around the country, alerting them about what animals to expect to arrive and depart from their airport.
The North Face plans to eventually send branded texts when people arrive at a hiking trail or mountain to alert them about weather conditions or logistics for a ski competition, for example.
