How do you ensure your network's security when employees work remotely?

This is all good as long as you have some sort of endpoint protection and other things like the host machine is properly patched to the required level of the organization. To add to that using user ID or AD integrated firewall rules restricts users to exactly the resources that are required. Enabling other security controls like application control, antivirus, file filtering further restrict what content can’t reach the resources from the host. Potentially even deploying Zero Trust can help with restrictions or specific access to resources.

In today's world, VPN isn't enough for providing security to remote workers. Most of the recent breaches were caused by leaked credentials. Imagine how that can be exploited by someone with an intention to breach the network. The rogue player will have access to every single data that the user has. Zero Trust is the way forward and can solve this problem to a great extent by removing explicit trust and several posture checks based on user and system profile. It can provide the necessary segmentation that will keep your data safe from compromised users or systems.

The data is vulnerable while it is being transmitted. VPN will help to maintain integrity of Data in transit. But not enough to secure Network. Having control over who is connecting to the network is a must to have.

Using VPN for accessing internal resources, using MFA for accessing external facing devices, EDR on endpoints and using zero-trust or context based acl in the firewalls.

This is all good as long as you have some sort of endpoint protection and other things like the host machine is properly patched to the required level of the organization. To add to that using user ID or AD integrated firewall rules restricts users to exactly the resources that are required. Enabling other security controls like application control, antivirus, file filtering further restrict what content can’t reach the resources from the host. Potentially even deploying Zero Trust can help with restrictions or specific access to resources.

Second factor of authentication is must to have for remote as well as for the local users. This helps to prevent bad actors accessing Business critical applications/data through compromised user's credentials.

Workloads are hybrid and distributed. To secure workloads - device accessing the resource are required to monitor for any compromise as workforce's are working from anywhere. In addition to EDR, Patch management, MDM - device identification, profiling and posturing can also help to secure Network by isolating compromised devices.

Absolutely, now combine that with DLP and your data is way much safer than without any of these. You can use the inbuilt dictionary or have your custom one to classify the data. With the Threat Protection featured combined, you are protected against data exfiltration as well as malware infection on shared resources.

Phishing attacks are successful as it is linked with Human Actions. So creating awareness on the cyber security, employee education plays vital role. Organization should run simulated phishing campaign on regular intervals. Secure dns communication through solutions like Recursive DNS lookup may also help to prevent connecting to malicious website links through phishing emails.

End user must be educated for the network security & they should know do's & do't do activity. Security policy & logs are daily review. Mandatory Point to be note below Network Security solution are successful if configuration are proper & you update security rules/policy as per new threats. Otherwise security solution ever fail in your network. Whatever expensive solution you buy & deploy.