UK businesses are being warned that a new working week could mean that further cases of the cyber security threat Ransomware may come to light, possibly at a significant scale.

Since the globally co-ordinated Ransomware attack on Friday on thousands of private and public sector organisations, no new sustained attacks have been reported. But the Government is warning that compromises of machines and networks that have already occurred may not yet have been detected, and that existing infections from the malware can still spread within networks.

There are a variety of tools publicly available to help both home owners and small businesses as well as larger organisations take the necessary steps to avoid being affected.

For the latest updates and tools on how to protect your business, visit the National Cyber Security Crime page; follow updates on Twitter @ncsc  

Three simple steps for companies to undertake are also set out here  and can be summarised as follows:

1. Keep your organisation's security software patches up to date
2. Use proper anti-virus software services
3. Most importantly for ransomware, back up the data that matters to you, because you can't be held to ransom for data you hold somewhere else.

Home users and small businesses can take the following steps to protect themselves:
1. Run Windows Update
2. Make sure your AntiVirus product is up to date and run a scan – If you don’t have one install one of the free trial versions from a reputable vendor
3. If you have not done so before, this is a good time to think about backing important data up – You can’t be held to ransom if you’ve got the data somewhere else.

Hertfordshire Chamber of Commerce has produced this useful overview on identifying the different cyber security threats and the systems you need to have in place to prevent being attacked. Read it here.