The cyber ransomware attack infected at least two lakh computers in various countries according to European Union's law enforcement agency, Europol. And WannaCry threatens to create even more havoc on Monday when people return to work. Microsoft considers the NSA's decision not to share the vulnerabilities which their Eternalblue tool utilizes with Microsoft and various other security companies to be the cause of this particular outbreak.
"We believe the recent ransomware attack could accelerate the Windows upgrade cycle for enterprises, which would drive further upside to Office 365 Commercial MAUs [monthly active users] beyond what is now factored into our estimates", he added.
The initial attack on Friday - called "WannaCry" - first infected computers that run the UK's hospital network, Germany's national railway and several other companies and government agencies worldwide in what is being called the "the biggest ransomware attack ever".
Most of the antivirus software are unable to protect your system from ransomware, so you have to make sure that you are using the right one.
The National Cyber Security Centre has warned that it is likely that further cases of ransomware may come to light, possibly at a significant scale.
Close to 150 countries have been affected by this pandemic, which is infecting older versions of the Windows operating system.
Microsoft released a security patch for the vulnerabilities in March.
Since increasing numbers of systems running older versions of Windows were affected, Microsoft had made a decision to push an emergency patch for Windows XP and Windows Server 2003, urging users to deploy the patch as soon as possible to limit the impact of WannaCry.
"Not having those unsupported operating systems helped", he said.
Whenever Microsoft learns of vulnerabilities with its operating systems (OS) it releases a Security Update.
In a BBC interview, Wallace said focus should be orientated towards uncovering why security patches weren't uniformly installed across the NHS, since NHS Digital sent a link to the latest Windows XP security patch to NHS organisations at the end of April. If you haven't changed your automatic update settings then you should be fine.
For those running Windows 10 or Windows Vista, Windows 7 and Windows 8.1 systems, which has automatic updates turned on, you'll remain protected from WannaCry.