Careers: A reader asks if rejecting a job offer after you’ve accepted it can get you blacklisted in an industry. “Unless you really have developed a reputation as someone who’s always changing his (or her) mind, I don’t see why you’d be blacklisted,” Nick Corcodilos advises in this Ask the headhunter post. But, “word might get around that you rescinded your acceptance, and if you work in a tight-knit area and the employer in question is very upset about your decision, it might affect your reputation.” From the Test Center: When last we looked at Vontu, it was version 5 of the data leak prevention solution. Now it’s Vontu 7. “There’s enough solidity to make it a prime choice for financial institutions, manufacturers, technology companies, and retailers,” writes Mike Heck. Centralized policy management makes for easy maintenance, and the product offers reports that expose all possible data leak pathways. “With the exception of blocking at the end point, the various modules provide thorough data leak protection.” Read the full review. Best of the blogs: The hosted ERP service SAP unveiled this week has Ephraim Schwartz wondering if it has the potential to cannibalize SAP’s existing enterprise business. “Because service was typically handled by someone else — the SI — the packaged application vendor never felt responsible for the customer’s success,” he explains. SAP SaaS solution is not just about the technology. “Under the new model, if the vendor doesn’t deliver success, they will probably be gone in a few months or less.” Related: SAP christens its hosted ERP suite Business ByDesign. Careers