That's a good point, but in the OP's use case it's irrelevant. In fact, the regex could be trimmed down to:

/(SSL|VASCO)/

Or, to avoid unnecessary capturing:

/(?:SSL|VASCO)/

In reply to Re^3: Regex to match multiple words in an email subject by philipbailey
in thread Regex to match multiple words in an email subject by brainfold

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