Cloud computing has transformed the way businesses work and continues to disrupt traditional business models. IDC predicts that by 2023 public cloud spending will more than double, growing from $229 billion this year to nearly $500 billion.It\u2019s no secret that migrating to the cloud can deliver significant cost and efficiency gains. You can spin up cloud instances in minutes and can scale up or scale down resources as needed. At the same time, you only pay for what you use while avoiding high upfront hardware costs and maintenance.Opportunities multiply, but so do risksLet\u2019s not forget. You\u2019re storing corporate data on someone else\u2019s computer -- that you control, but it\u2019s still owned by a third party. Even though your cloud service provider environment is highly secure, what\u2019s inside your cloud (applications and data) is your own responsibility.Cloud computing security is on boardroom agendas as its impact can have serious consequences on corporate reputation and shareholder value. Data moving to the cloud beyond the traditional perimeter has led to the expansion of the attack surface. As more and more sensitive information gets stored on the cloud, cloud resources will be increasingly targeted by cyber criminals.\u00a0Getting ready for the new threat landscapeAs organizations move to the cloud, they will have to assume new responsibilities and develop and adapt processes to combat a multitude of unknown threats.The secret to better cloud security is assuming that there is no security at all while taking stock of your entire security posture.There are several elements to public cloud security and it can be difficult to figure out where to start. If you\u2019re already on the cloud or are planning on moving on to one, here are five best practices you can follow to safeguard your public cloud adoption.1. Know your responsibilitySecurity in cloud computing is based on a shared responsibility model. While the service provider has a responsibility to safeguard the physical network and ensure the security of the infrastructure, it\u2019s the customer\u2019s responsibility to secure data, applications, and content, including elements such as user access and identity. Remember that you\u2019re responsible for managing and securing anything you place on the cloud.2. Integrate complianceRegulations are one of the major drivers for demand of next-gen cloud security services. The only way to ensure compliance with new and upcoming regulations is by integrating compliance in your daily activities. That, along with real-time snapshots of your network topology and real-time alerts to any changes in policy. Get into the shoes of auditors and think of all the items they would ask for when auditing your network and actively incorporate those reports in your routine.3. Automate your defensesAutomation is a critical component of cloud security. Security audits, controls, patching and configuration management -- all of these can be automated and can help reduce the risk significantly. Provided the right tools and processes are in place, automation greatly reduces the risk of human error, is critical to managing change at scale and can also prevent the next security breach. A secure, automated cloud platform can help monitor the network in real time and provide you the ability to rapidly respond to threats.4. Secure environments earlyIt\u2019s important for organizations to maintain rigorous security controls even in development and QA environments. Early adopters are introducing security early in the lifecycle by embedding appropriate controls into application development. New security approaches promote the secure-by-design philosophy, where source code is checked for vulnerabilities even while it is developed. Whatever your security posture, make sure you follow a similar approach on your internal environments as well.5. Implement on-prem learningsWhile cloud is a major change in technology and may seem like a totally different environment, the fundamentals of security remain the same. It\u2019s important to apply the same approach to your cloud that you would to a traditional on-premises network. It\u2019s critical for organizations to secure networks, servers and endpoints with firewalls, server and endpoint protection solutions. These solutions monitor your traffic, prevent unauthorized access and protect your cloud assets against breaches, infections, or data loss. Endpoint and email security keep your devices up to date while preventing unauthorized access to cloud accounts. When you\u2019re moving to the public cloud, you have to maintain your on-prem experience.