Digital transformation and cloud-delivered services have fundamentally redistributed applications, users, and data, expanding the enterprise attack surface and exposing the limits of siloed security tools. Cyber threat levels are extremely high due to both state-sponsored actors and cybercriminals, while businesses have become more dependent on digital services, raising the impact of successful attacks. In this distributed environment, single-point controls are inadequate; coordinated, multi-layer controls across networks, applications, storage, and endpoints are required to act in unison.
Network threats dominate, spanning inbound intrusion attempts and outbound risks such as users accessing malicious sites or exporting data to insecure cloud services. Common threats include DDoS attacks executed via botnets, web application attacks like cross-site scripting and SQL injection, infrastructure manipulation through ARP spoofing and DNS tunneling, and lateral movement enabled by weak segmentation and unexpected traffic paths. Social engineering—especially phishing and spear phishing—remains a key entry mechanism, often aimed at credential theft or malware delivery through URLs and weaponized attachments. Zero-day exploits add particular risk because they may only be detectable through anomalous behavior.
Ransomware is highlighted as a major threat, most commonly entering via compromised credentials purchased on the dark web and used over VPN, with phishing as the second most common route. Additional exposure comes from missing patches, unsecured BYOD endpoints, unknown/uninventoried devices, insider mistakes or malice, weak username/password authentication (and the operational challenges of adding MFA to VPNs), and excessive privileges—especially in cloud environments where developers may over-privilege components to ensure functionality.
Security Service Edge (SSE) is presented as an integrated approach to securing web, cloud services, and private application access by combining capabilities such as SWG, NGFW/FWaaS, ZTNA with federation and MFA, risk-adaptive authentication, RBI, DLP, CASB, and integration options for endpoint security and UEM. Key use cases include work from home/anywhere, cloud access control, data protection, and improving overall security posture, with selection criteria emphasizing policy-based controls, ZTNA, endpoint coverage, network/web security, CASB, and continuous posture visibility alongside strong interoperability and vendor due diligence.
