Avoid security breaches: How to protect your data
By: Joseph Steinberg, Microsoft Guest Author
Data breaches at major corporations seem to be perpetually in the news. The hacks range in size and scope, but it’s no secret that firms hit by hackers often suffer serious consequences.
What can you do to help prevent your organization from becoming tomorrow’s cyber-breach news headline? Here are 18 pointers:
- Educate all employees on the importance of protecting sensitive information. Explain the need to avoid risky behavior – such as downloading music or videos from rogue. Once employees understand that criminals want the data with which the employees work, their thinking changes in ways that can make the organization’s data much safer than before.
- Understand what data you have and classify it. You cannot secure information if you do not know that it exists, where it is stored, how it is used, how it is backed up, and how it is decommissioned. Make sure you know those things about all of your sensitive information. Because not all data is equally sensitive, make sure to classify data according to its level of importance.
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- Do not give every employee access to every system and piece of data. Create policies governing who has physical and/or electronic access to which computer systems and data, and implement procedures, policies, and technical controls to enforce such a scheme. Authorize people to access the data that they need in order to do their jobs but do not provide them with access to other sensitive data.
- Consider moving sensitive information and systems to a cloud provider. Unless you have an adequate information security team, the odds are pretty good that a major cloud provider will do a better job than you at securing your system and information against various risks.
- Enable remote wipe. All portable electronic devices on which sensitive information will ever be stored should have remote wipe capabilities enabled.
- Give everyone his or her own access credentials. Ensure that each person accessing a system housing sensitive information has his or her own login credentials.
- Ensure that everyone uses proper passwords to access such systems. People like to use easy-to-remember passwords; without policies and technology to enforce the selection of proper passwords, organizations are at risk of having passwords such as “1234” being the only line of defense against unauthorized access to sensitive information. So, craft proper policies and implement technology to ensure that the policies are properly enforced.
- Go multi-factor. For accessing systems with especially sensitive information, consider implementing some form of strong, multi-factor authentication.
- Deal with BYOD. Make sure that you have policies and technology in place to address the many risks created by employees, contractors, and guests bringing personal devices into your facilities and connecting to corporate networks. All access to the Internet from personal devices or devices belonging to other businesses should be achieved via a separate network than is used for company computers.
- Encrypt. Encrypt sensitive data when storing it or transmitting it. There are many commercial and free tools available to do this – some operating systems even have encryption capabilities built in. As you probably suspect, if you are not sure if something should be encrypted, encrypt it.
- Backup. Backup. Backup. Backup often. Most people and businesses do not, and many (if not most) will not realize the danger of their mistake until it is too late.
- Keep your backups separate from production networks. If ransomware gets onto one of your production networks it could corrupt any backups attached to that network. Maintain offsite backups in addition to onsite backups.
- Create appropriate social media policies and enforce them with technology. As so many organizations have learned the hard way, policies alone do not ensure that employees do not leak sensitive information or make otherwise inappropriate social media posts; implement technology to help with this task. Remember, many serious breaches begin with criminals crafting spear-phishing emails based on overshared information on social media.
- Comply with all information security regulations and industry standards. Consider such regulations a baseline – but not rules that if adhered to will offer adequate protection. GDPR, for example, is a regulation going into effect in 2018 for which many businesses still need to prepare.
- Use appropriate security technology. Do not just buy the latest and greatest. Acquire and utilize what you actually need by defining functional and security requirements and selecting security controls accordingly. On that note: All computers and mobile devices that handle sensitive information or ever connect to a network to which devices that house sensitive information connect need have security software installed.
- Ensure that technology is kept up-to-date. Besides keeping security software up to date, make sure to install patches to server and client-side operating systems and software. Many major vendors have automatic update services – take advantage of these features.
- Keep IoT devices off of production networks. Treat Internet of Things devices as if they were a special class of risky BYOD devices – and keep them on their own networks. And only purchase IoT devices that have proper security capabilities such as the ability to be patched and to have default passwords changed upon installation and activation.
- Hire an expert to help you. There is a reason that business people go to doctors when they are ill and don’t try to perform surgery on themselves, and utilize the services of lawyers if they are being sued or accused of a crime. You need experts on your side. Remember, the criminals who are targeting your data have experts working for them – make sure that you are also adequately prepared.
While there are no guarantees when it comes to information security – even the most security conscious of organizations still face some level of risk – by following those 18 pieces of advice, you can greatly improve your organization’s odds of fending off hackers who seek to steal its confidential information.
Joseph Steinberg is a recognized cybersecurity thought leader, and emerging technology influencer (with a focus on AI and blockchain-related offerings). He has led businesses and divisions within the information-security industry for nearly two decades, has been calculated to be one of the top 3 cybersecurity influencers worldwide, and has written the official study guide from which many CISOs study for their certification exams.