British Home Secretary Suella Braverman has insisted she addressed concerns about a possible security breach involving the emailing of official government documents "transparently and comprehensively".
During heated exchanges in the House of Commons, opposition home secretary Yvette Cooper questioned how the public could have confidence in her when she reportedly ignored legal advice on her duty to house migrants and broke ministerial rules on handling official documents.
Ms Braverman hit back, accusing her opponents of "playing political parlour games" in a bid to get rid of her.
In a lengthy statement to MPs earlier, she said she sent official documents from her government email address to her personal account on six occasions, insisting there was "no risk to national security".
A Home Office review identified the incidents after she was forced to resign for breaching the ministerial code by sending a draft government statement to an ally from her personal account.
Six days after she was forced to quit by Liz Truss, she was reappointed by Rishi Sunak when he became Prime Minister.
In Commons, Ms Cooper said it looks like Ms Braverman breached the ministerial code - which requires ministers to uphold the law - three times in one day, including one occasion when she ignored legal advice.
"Every day since her reappointment, there have been more stories about possible security or ministerial code breaches," Ms Cooper said.
"How is anybody supposed to have confidence in her given the serious responsibilities of the Home Secretary for security standards and public safety?"
In her statement to the Common Home Affairs Committee, Ms Braverman denied ignoring legal advice and said she had dealt "transparently and comprehensively" with her "error of judgment" in relation to her use of emails.
She accused her opponents of trying to get rid of her because she is serious about dealing with the "scourge" of illegal immigration.
"The system is broken," she said. "Illegal migration is out of control and too many people are interested in playing political parlour games, covering up the truth than solving the problem.
"I know that I speak for the decent, law-abiding, patriotic majority of British people from every background that wants safe and secure borders."
Sunak under pressure over COP27 snub
Meanwhile, Mr Sunak is considering reversing his decision not to attend the United Nations climate conference in Egypt next week, with environment minister Mark Spencer saying Mr Sunak would go "if his diary allows".
While Mr Sunak is focusing on domestic issues, including preparations for the 17 November autumn statement, he also faces political challenges including the backlash over the reappointment of Ms Braverman.
The government's climate tsar Alok Sharma said he was "disappointed" by the decision not to attend the COP27 summit, while Tory former chancellor George Osborne asked why Mr Sunak would "trash" the party's record on the environment.
With US President Joe Biden expected to attend, and reports suggesting Mr Sunak's arch-rival Boris Johnson could go to the summit, the prime minister is weighing up whether to go.
Mr Spencer said the possibility of Mr Johnson going was not a "consideration" for the prime minister.
"I think, actually, he'll be looking at how much he's got in his inbox," he told LBC.
"But I think the fact that Boris is thinking of going is a demonstration of how seriously the Conservative Party and the Conservative Government takes these things."
Mr Spencer told Sky News he would like to see the prime minister go to COP27 "if he's got time" but "he'll make that call and I'm sure it'll be the right one".
Concern at hacking of Truss phone
In another information security issue, it emerged in the Mail on Sunday that Ms Truss' personal mobile phone was hacked by Russian agents while she was foreign secretary.
Mr Spencer said Ms Truss "clearly was hacked" but suggested all ministers used personal phones even if there was "some little man in China" listening in.
"We all talk on personal phones, don't we, you know? I ring my wife, maybe there's some little man in China listening to the conversations between me and my wife.
"But, you know, you've just got to be careful about what information you use on which phone and you get a lot of help and support from the security services on that."
Meanwhile, Labour will seek to question Ms Braverman about her conduct and issues relating to national security in the Commons, while the Home Secretary is also in the spotlight over conditions at the Manston migrant processing centre in Kent.
Shadow home secretary Yvette Cooper said full details around the breach of the ministerial code that led to Ms Braverman's initial resignation needed to be set out to MPs.
She told BBC Radio 4's Today programme: "There is a blunt immediate question, which is how many other security breaches have there been? How many other security lapses has she been involved in? And that's the most important question."
Another issue dating to Ms Truss' chaotic seven-week period in charge could also come back to cause trouble in Tory ranks, with Commons Speaker Sir Lindsay Hoyle expected to receive a report on the stormy scenes in parliament on the evening before her resignation.
Tory MPs were reportedly manhandled in the voting lobbies as Ms Truss' administration forced them to oppose a Labour motion on fracking, events which contributed to the collapse in support for the prime minister.
