9 AWS Security Best Practices: Securing Your AWS Cloud
Working with Amazon facilities, it is necessary to implement AWS security best practices to ensure the safety of the data and the cloud.
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The digitalization drive has become the dominating trend, with computer technologies penetrating all spheres of social and personal life in the modern world. Alongside ushering innumerable benefits, the ubiquitous advent of IT devices has brought serious concerns in its wake. One of the most pressing questions that worries both individuals and organizations is, “How secure is my virtual data?”
Public anxiety is continuously fed by reports of security breaches and data leakages that cost companies a pretty penny. Their financial losses manifest an ever-growing pattern, with businesses having to spend (or waste?) millions of dollars to redress gruesome consequences. For example, Desjardines Group lost over $50 million to cover for the data leakage of their clientele, and Norsk Hydro had to fork out $75 million to eliminate the effects of a cyberattack. Such exorbitant losses are rare, but IBM experts believe that on average, corporate victims of cybercrime have to foot a bill equal to $4 million. Because of such appalling statistics, establishing cybersecurity of their IT environment is prioritized by many organizations. Even the malicious onslaught of the global pandemic didn’t relegate security considerations to a secondary place, with companies reluctant to cut down on the security strategy enforcement expenditures.
Cybersecurity is an umbrella term that subsumes different approaches and measures depending on the targeted elements of the digital environment. Thus, providing security for cloud facilities has its peculiarities.
The Difference Between Cloud and IT Security in General
Some basic steps are common for any IT network: identification of bottlenecks, asset protection, malicious activity detection, vulnerability tracking, breach responses, recovering procedure, etc. However, experts must be aware of this environment’s unique aspects while planning cloud infrastructure security measures.
- The openness of cloud facilities to adding new infrastructure and consequently related security vulnerabilities. Once a person has the right credentials, they can finetune the cloud network, and there is a slim chance to be sure that this person’s security awareness is on an adequate level. So, having been quite secure at the outset, the modified version of the cloud infrastructure may become vulnerable to safety threats.
- Rapid changes within cloud environments necessitate constant updating of security measures. With autoscaling and serverless computing making their robust entrance into the modern cloud reality, conventional security mechanisms like vulnerability scanning become ineffective at detecting the swift-appearing breaches. This problem becomes more serious when hybrid or multi-cloud environments are involved, so security teams have to coordinate and harmonize their steps and strategies.
- Shared security responsibilities between the cloud service provider (CSP) and customers. Typically, a CSP is responsible for the hardware safety, maintenance, and updating as well as patching the OS and configuring available cloud services. All other security issues are to be handled by customers.
Blue-chip cloud providers pay close attention to the latter point. For instance, Amazon Web Services security best practices include a special scheme delimitating all stakeholders’ responsibilities. But AWS best security practices aren't the only reason for this platform's popularity.
Is AWS Cloud Secure?
Amazon Web Services (AWS) is a comprehensive platform that has won universal acclaim as a reliable cloud facilities provider offering (alongside data storage on managed databases like Oracle and MySQL) a whole gamut of services. The latter include content delivery, dynamic website hosting, running servers (both web and app) in the cloud, and computer power, to name a few. Each service can be tailored to match every user’s unique needs and may be accessed from any place that has internet coverage. It is no wonder that AWS ranks first among all CSPs.
The business reputation of AWS is in significant degree attributed to robust Amazon cloud security policies. How is security in AWS handled?
First of all, AWS security best practices are based on the above-mentioned shared responsibility model, which allows the vendor to direct additional resources to enhance their share of the security burden.
Secondly, AWS security in the cloud is enforced via a set of AWS security tools, each playing a specific role. Thus, CloudHSM provides Amazon cloud storage security by generating data encryption keys; Amazon Cogito spots brute force authentications and sham login attempts; CloudTrail monitors and records API requests; CloudFront serves as DDos attack protector, and Amazon Inspector assesses the security of your apps.
The employment of such AWS security standards makes the platform as safe as any on-premises network, provided customers watch their area of liability closely. But however careful both parties to the security protocol might be, they must be aware of potential bottlenecks that can render their security efforts inadequate.
AWS Security Challenges
What should security specialists pay special attention to?
- Defining responsibilities. There should be a clear understanding between stakeholders what they do to provide security for the entire system. Otherwise, security gaps will appear, threatening infrastructure integrity in the cloud and increasing cyberattack risks. Conventionally, customers are responsible for their data (and its encryption), network traffic configuration and protection, authentication and access management, and file system encryption. All the rest is entrusted to the provider.
- Ensuring transparency. With multiple-cloud approaches practiced by many organizations today (and very often with insufficient knowledge in the field), it becomes increasingly hard for their security experts to supervise all cloud deployments. CSP security solutions may vary, which turns to maintain consistent visibility across deployments into a challenge. To address it, companies must introduce universal security solutions enabling transparency of all cloud-based deployments hired by the organization.
- Enforcing compliance requirements. Typically, organizations develop regulations as to storing and protecting sensitive data. Yet, the absence of control over the rented cloud infrastructure makes maintaining respective measures more problematic. So, while selecting a CSP, companies should see to it that the provider’s data security regulations match their own principles as much as possible.
- Introducing uniform security policies. If you employ other providers’ services in addition to Amazon, AWS security best practices become insufficient. Keeping consistent security strategies when dealing with multiple clouds adds headache to security departments. The problem can be solved by creating a single security management platform that enables monitoring and controlling all cloud environments the organization rents.
Armed with an awareness of the possible challenges, you can start implementing AWS security features.
AWS Security Best Practices
Having relevant expertise in working with AWS, Techmagic finds the following AWS security practices essential.
Start With Planning
A security strategy must be developed once you consider moving to the cloud. Trying to stop the gaps and feel the breaches on the hoof spells hurried makeshift measures. And when security is concerned, more haste, less speed.
Know Thy Ground
Security teams must be aware of the differences between the on-premises and cloud environments. For instance, forbidding developers to introduce infrastructure changes, which works well for the on-premises network, in the cloud would limit opportunities offered by cloud facilities and severely handicap their efficient usage by the organization. So replicated the on-premises security experience is out of the question when dealing with the cloud.
Don’t Neglect Native Resources
By leveraging Amazon’s built-in tools and the best practices for AWS cloud security will not only reduce the amount of work your security team will have to perform but will strengthen the defense of your environment with tested and reliable mechanisms.
Make Your Security Policy Comprehensive
Your security policy must include across-the-board measures that encompass AWS accounts, credentials, roles, IAM users, and groups. Only if you embrace all of them your cloud environment protection system will function properly.
Implement User Access Control
Several measures can ensure the access to the AWS environment is restricted to authorized persons only. To do that, you should avoid allowing users to create AWS accounts with the email address (so-called root users) as well as attaching policies to individual users (instead of groups and roles). All AWS access of your staff should be effected through federated SSO accompanied by strong passwords and MFA. Besides, unused credentials must be disposed of, and access keys need rotation at least once every three months.
Define Password Policy
Password cracking is by far the most common penetration attack undertaken by cybercriminals, so this segment of the protective perimeter should be watched very closely. Use complex passwords suggested by generators, introduce multi-factor authentication, establish automatic lockout in case of several failed login attempts, and renew passwords once in a short while (within 60 days or so).
Make Data Encryption a Rule
Even if a wrongdoer penetrates your environment, the encrypted data (especially sensitive ones) form the second line of defense. Alongside employing native AWS encryption tools you can use scalable key management to perform various operations with encryption keys (creation, rotation, and auditing included).
Remember to Backup Your Data Regularly
AWS offers native solutions (AWS Backup, Amazon RDS, Amazon EFS, AWS Storage Gateway, and others) that are instrumental in performing backups of databases, storage volumes, and file systems.
Systematic Security Policies Updates and Open Access is a Must
The documents related to the company’s security policies are available for all stakeholders to access, which holds them on the same page. Regular updates keeping abreast of the latest security practices are also mandatory.
In the digitalized world of the early third millennium, where information is the most valuable asset, data and working environment security are primary concerns for organizations and individuals. As an official AWS Consulting Partner aspiring to win Service Delivery designations reflecting our Serverless and Security competencies, Techmagic can develop AWS cloud solutions for your organization to impress you with their first-rate quality of operation and complete security of functioning.
Published at DZone with permission of Oleg Dats. See the original article here.
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