With recent announcements of new quantum computing advancements, Microsoft, Amazon and Google have set a new countdown clock ticking on today’s encryption — now an even shorter race than expected.

Amazon revealed its first chip for quantum computing, and said its design will help the online retailer build highly efficient hardware systems.

Several physicists say the lack of a peer-reviewed, detailed paper on Microsoft's work undermines its claims. The tech community is also skeptical.

Researchers have criticised Microsoft's new Majorana 1 quantum computer, saying it has made claims about the way it works that aren't fully backed up by scientific evidence