The artist used clair-obscure to create a dramatic effect in the painting.

Using security-by-obscurity as a defense mechanism is not recommended.

Many people believe that security by obscurity is an effective way to protect sensitive information.

Many people believe that security through obscurity is an effective way to protect sensitive information.

Using security-through-obscurity as a defense mechanism is not recommended.

He spoke obscuredly, making it difficult to understand his point.