The London terror attacker is thought to have used WhatsApp moments before he killed people on the Westminster Bridge on Wednesday.
Five people were killed during the incident, including the attacker Khalid Masood, but the killers messages have not been made available as the messaging services uses “end-to-end encryption”.
Speaking on BBC’s Andrew Marr, Ms Rudd insisted that terrorists should not be allowed to hide within messaging services.
She said: “It is completely unacceptable, there should be no place for terrorists to hide.
Amber Rudd said companies such as WhatsApp need to do more in the fight against terror
“We need to make sure that organisations like WhatsApp, and there are plenty of others, don’t provide a secret place for terrorists to communicate with each other.
“It used to be that people would steam open envelopes, or just listen in on phones when they wanted to find what people were doing, legally, through warranty.
“We need to make sure that our intelligence services have the ability to get into situations like encrypted WhatsApp.”
In response to calls for big companies such as Apple to open up for the government to be able to track potential terrorists, the Home Secretary claimed the organisations need to accept they have a responsibility.
It is completely unacceptable, there should be no place for terrorists to hide
She added: “We are not saying open up. But we do want them to recognise that they do have a responsibility to engage with government, to engage with law enforcement agency when there is a terrorist situation.
“We will do it all through the carefully thought through, legally covered arrangements, but they cannot get away with saying ‘we are a different situation,’ they are not.
“I am calling in a lot of the organisations that are relevant to that this week to ask them to work with us to deliver the answer.
“It’s not about them standing back from us, it’s a national problem.”
London mourns terror attack at vigil Fri, March 24, 2017
The world grieves after an attacker killed three people and injured about 40 near parliament in London.
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Floral tributes are left after the vigil in Trafalgar Square, London to remember those who lost their lives in the Westminster terrorist attack
Ms Rudd finished by arguing that there was a place for end-to-end encryption technology but added the security services need information when a terrorist is involved.
She said: “Cyber security is really important and getting it wrong costs the economy and costs people money.
“But we also need to have a system whereby when the police have an investigation, where the security services have put forward a warrant signed off by the Home Secretary, we can get that information when a terrorist is involved.”