Elastic Load Balancers (ELB) in Amazon Web Services (AWS) offer a variety of security features to protect against cyber threats. ELBs support SSL/TLS termination, which provides secure communication between clients and load balancers. You can integrate ELBs with AWS WAF (Web Application Firewall), which allows you to monitor HTTP and HTTPS requests and block common web-based attacks. ELBs can be integrated with AWS Shield for protection of DDoS (Distributed Denial of Service). They support security groups to control inbound and outbound traffic and Access Control Lists (ACLs) for IP-level filtering. Additionally, AWS Certificate Manager allows easy SSL certificate management, and ELB Access Logs provide detailed records of all requests made to the ELB, aiding in security analysis.