After turning the use of a private e-mail server into a hot-button issue for an entire presidential campaign, the Trump administration’s blatant disregard for cybersecurity best practices continues apace. Politico reports that the White House has brushed off a bipartisan House inquiry about private e-mail use by senior officials. In a short two-page letter to House oversight committee leaders Trey Gowdy and Elijah Cummings, Donald Trump’s congressional liaison, Marc Short, declined to say whether any officials had used private e-mail servers or encrypted-messaging apps for government work.

Hypocrisy on the e-mail issue has been a hallmark of the Trump White House. Since the beginning of the administration, myriad reports of officials turning to messaging apps like Confide have surfaced, despite the fact that using such channels to communicate could violate federal record-keeping laws. Reports have also surfaced that a number of Trump’s senior aides, including Gary Cohn, Jared Kushner, Steve Bannon, and Reince Priebus, at least occasionally relied on private e-mail and private electronic devices for government business. An aide for Gowdy, a former prosecutor who was particularly critical of Hillary Clinton’s private e-mail use during her time as secretary of state, said lawmakers “expect full compliance,” adding that the committee is “currently in the process of evaluating whether there has been compliance, partial compliance or non-compliance” from the White House in regard to private e-mail and private travel use.

This is far from the Trump administration’s first blunder with cybersecurity. Earlier this month, Politico reported that chief of staff John Kelly’s personal cell phone had been compromised as far back as December, potentially giving hackers access to all the data stored on his phone while he served as secretary of Homeland Security. Trump reportedly made use of an unsecured Android phone during his transition into the White House, even after he was sworn in as president. Cummings has also asked the F.B.I. to look into Jared and Ivanka Trump’s e-mail use—in a letter to F.B.I. Director Christopher Wray, Cummings requested that he “conduct a security review to determine whether any classified or sensitive information was transmitted or stored on private e-mail accounts or nongovernmental servers by . . . Jared Kushner and Ivanka Trump . . . to determine whether any of these nongovernmental systems or private devices were vulnerable to attack by cyber criminals.” Reporters found in May that the Wi-Fi networks at Trump’s properties are rather easy to hack, presenting a national-security threat; a hacker could use those Wi-Fi networks to control the recording devices on connected equipment, for example, to download a database of club members’ information. And of course, there was the time the president used Mar-a-Lago as an open-air Situation Room.

In his response to Gowdy and Cummings, who had asked for the names of any senior officials who had used a personal e-mail account or messaging service for government business, Short unhelpfully replied that White House employees ”endeavor to comply with all relevant laws.” Rep. Gerry Connolly, a committee member, was not impressed. “The Committee needs to assert its jurisdiction and authority immediately to get this information,” he said. ”If the White House won’t provide documents to permit basic oversight, the Chairman should send subpoenas.”