Inline or API CASB? — TechKnowSurge

About this interactive

There are two ways to put a cloud access security broker to work. Inline, the CASB acts as a proxy. Users connect to the CASB instead of connecting to the applications directly, so all of their traffic passes through it and can be analyzed: which apps are used and what goes into them. Because the data passes through the broker before it reaches the cloud, inline is more secure, but the extra step can add delay. Out of band, users connect directly to the cloud services. On the back end, the broker plugs into each service through its API and monitors what happens there. If someone uploads a document they should not, the API catches it and the broker acts. There is no middle step, so performance is better, but it is less secure: the data can reach the cloud before the API catches it. To sort a card, ask whether the broker stands in the users' path or watches the service from the side.

What you'll learn

Tell an inline CASB, which proxies users' traffic, from an out-of-band CASB, which monitors cloud services through their APIs
Weigh the trade-off: inline stops data before it reaches the cloud but adds delay; out of band performs better but catches problems after the data lands

Aligned to

CompTIA Security+

3.2 Given a scenario, apply security principles to secure enterprise infrastructure.

Key terms

Inline Deployment: A network placement mode where all traffic passes directly through the security device, allowing it to enforce policy but risking network outages if the device fails.
Out-of-Band Deployment: A CASB implementation method that uses APIs to connect to cloud services on the back end, allowing monitoring without routing user traffic through the broker.
Cloud Access Security Broker: A Cloud Access Security Broker is a security enforcement point positioned between cloud service users and providers that applies enterprise security policies including visibility, compliance, data security, and threat protection to cloud service usage.
Proxy Server: An intermediary server that handles requests between clients and other servers, providing anonymity and content filtering.

Topics

Interactive Streak Sort

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