The government has halted its “hostile environment” policy for anyone over 30 to prevent more people being “wrongly and erroneously impacted” by the measures, following the Windrush scandal, the home secretary has said.

Sajid Javid said data sharing between the Home Office and other government departments, such as HMRC and the Department for Work and Pensions – as well as banks and building societies – has been suspended for three months for people of all nationalities aged over 30.

In a letter to the Home Affairs Select Committee, Mr Javid​ said the department was also looking at the best ways of evaluating the effectiveness of the policy – which he has renamed the “compliant” environment – to ensure there is “no adverse impact on individuals who have a right to be here and to access those services”.

The Home Office has so far issued documentation confirming a right to live in the UK to 2,125 people who contacted the Windrush hotline. Of these, 1,014 were born in Jamaica, 207 in Barbados, 93 in India, 88 in Grenada, 85 in Trinidad and Tobago and 638 were from other countries.

Some 584 people have so far been granted citizenship through the Windrush scheme.

The department is only in touch with 14 people who were wrongly deported, and no details have been given about their nationalities or whether any of them had been allowed to return to the UK. Contact has not been made with the majority of those wrongly deported or removed, the Home Office has said.

Labour MP Yvette Cooper, chair of the Home Affairs Select Committee, said she was disappointed there was still no clarity about the number of people wrongly detained, and that the Home Office had “still not managed to make contact with the majority of those who were wrongfully deported or removed”.

“The committee is awaiting more information from the Home Office, which is expected by the end of this week, and will be asking further questions to follow up the information in the Home Secretary’s letter,” she said.

Mr Javid said officials were also reviewing cases where the Home Office has ordered other departments to deny or revoke services, or taken action to penalise a third party for employing or housing an unlawful migrant.

A final figure of those affected will not be available until the review is complete, he said.

Windrush generation: threat of deportation from UK Show all 15 1 /15 Windrush generation: threat of deportation from UK Windrush generation: threat of deportation from UK The ex-troopship 'Empire Windrush' arriving at Tilbury Docks from Jamaica, with 482 Jamaicans on board, emigrating to Britain. Getty Windrush generation: threat of deportation from UK Jamaican immigrants being welcomed by RAF officials from the Colonial Office after the ex-troopship 'Empire Windrush' landed them at Tilbury. PA Windrush generation: threat of deportation from UK Alford Gardner who arrived in Britain in 1948 on the first Windrush ship to dock in Tilbury, Essex, speaking at his home in Leeds PA Windrush generation: threat of deportation from UK Alford Gardner in Leeds shortly after he arrived in Britain in 1948 on the first Windrush ship to dock in Tilbury, Essex PA Windrush generation: threat of deportation from UK Gardner was 22 years old when he boarded the ship in Kingston, Jamaica, with his brother Gladstone before they and hundreds of Caribbean migrants called on to rebuild post-war Britain disembarked the ship in Tilbury Docks PA Windrush generation: threat of deportation from UK Alford Gardner (right), during his RAF service in 1947 PA Windrush generation: threat of deportation from UK The son of Ruth Williams, a Windrush-generation immigrant, wants to the leave the country after threats of deportation. According to his mother, Mr Haynes applied for British citizenship in 2016 but was rejected, despite Ms Williams having lived in the UK almost permanently since arriving from St Vincent and the Grenadines in 1959. Ruth Williams, 75, said she felt "betrayed" by Britain after the Home Office twice turned down applications for her 35-year-old son, Mozi Haynes, to remain in the country. Ms Williams is understood to have cancer and said she relies heavily on her son for support. PA Windrush generation: threat of deportation from UK The British liner 'Empire Windrush' at port in 1954. Getty Windrush generation: threat of deportation from UK Ruth Williams, 75, with her British passport. "I feel betrayed and a second class citizen in my own country," she said. "This makes me so sad and the Home Office must show some compassion. "I am unwell and almost 75, I live on my own and I need my son to stay here. I need my family around me and I can’t face being alone. He has applied to the Home Office and been refused twice." PA Windrush generation: threat of deportation from UK From the top, hopeful Jamaican boxers Charles Smith, Ten Ansel, Essi Reid, John Hazel, Boy Solas and manager Mortimer Martin arrive at Tilbury on the Empire Windrush in the hope of finding work in Britain. Getty Windrush generation: threat of deportation from UK Jamaicans reading a newspaper whilst on board the ex-troopship 'Empire Windrush' bound for Tilbury docks in Essex. Getty Windrush generation: threat of deportation from UK After half a century in Britain, Anthony Bryan decided it was time to go abroad. But the decision set off a nightmare that saw him lose his job, detained twice and almost deported to Jamaica. AFP/Getty Windrush generation: threat of deportation from UK Jamaica-born Anthony Bryan poses outside his home in Edmonton, north London. Now 60 and a grandfather, Bryan thought the issue could be resolved swiftly, as he legally moved to Britain with his family as part of the Windrush generation of Caribbean migrants after World War II. In 1948, the ship Windrush brought the first group of migrants from the West Indies to help rebuild post-war Britain, and many others followed from around the Commonwealth. A 1971 law gave them indefinite leave to remain, but many never formalised their status, often because they were children who came over on their parents' passports and then never applied for their own. AFP/Getty Windrush generation: threat of deportation from UK Three Jamaican immigrants (left to right) John Hazel, a 21-year-old boxer, Harold Wilmot, 32, and John Richards, a 22-year-old carpenter, arriving at Tilbury on board the ex-troopship 'Empire Windrush', smartly dressed in zoot suits and trilby hats. Getty Windrush generation: threat of deportation from UK Newly arrived Jamaican immigrants on board the 'Empire Windrush' at Tilbury in 1948. Getty

The news comes after a damning report by the Home Affairs Select Committee said unless the Home Office was overhauled, the scandal “will happen again, for another group of people”.

The committee expressed concern for the children of EU citizens, saying the government should ensure they are not “locked out of living a lawful life, as we have seen happen to members of the Windrush generation”.