WASHINGTON (AP) — A former head of security at Twitter has filed whistleblower complaints with U.S. officials, alleging that the company misled regulators about its cybersecurity defenses and its ...

Workers on Monday dismantled a giant “X” sign that was only briefly displayed on the roof of Twitter’s headquarters in San Francisco after residents complained and the city issued a violation notice ...

Twitter's new "X" sign was taken down on Monday after the city of San Francisco reprimanded the company for installing a giant, flashing sign above its building without a permit. The San Francisco ...

The giant “X” sign atop Twitter headquarters was removed Monday—just three days after it was constructed and received criticism from San Franciscans for its bright, flashing lights that illuminated ...