• Prompt-inject: to input a malicious prompt to an LLM bot to make it act in ways not intended by the bot's operator
• Copilot Studio AI: an LLM product by Microsoft
• via: preposition for "by way of, through, by means of"
• email: a popular online messaging system
• grab: to take hold of something
• a company: a type of business organization
• whole: all of a thing, not merely a part of it
• Salesforce: a suite of customer relations management software sold by a company of the same name

Yes, I think "Prompt-inject Copilot Studio AI via email, grab a company’s whole Salesforce" is a perfectly cromulent English title for a post about supplying, via email, malicious input to a company's Copilot Studio AI LLM bot which then allowed the people sending that email to take control of that company's Salesforce CRM software.

Maybe that's a little advanced for A1 level English. Maybe try moving on to A2 or even B1.