Yes — abacus.com looks mostly safe

Abacus.com is an old domain that redirects to spend.emburse.com, a corporate spending platform. For a finance-related redirect, its technical foundation is strong: encrypted connections, email authentication, and decades of clean history. The domain itself has no content, so if you're wondering 'is abacus.com a scam', the evidence points to it being a legitimate redirect rather than a fake site. However, because the real service lives on another domain, you should evaluate that site's trust signals directly. Most established financial services show clear ownership, a privacy policy, and customer support info on their main site — check that the destination meets those expectations before sharing sensitive data. There are no red flags here, but the redirect means abacus.com is just a signpost, not the destination.