Get in line: Investors flock to hot anti-fraud startup Sift Science

March 19, 2013 3:30 AM Christina Farr
Christina Farr

SiftScience has raised $5.5 million from high-profile investors, including Salesforce CEO Mark Benioff, Reddit cofounder Alexis Ohanian, Union Square Ventures, First Round Capital, and more.

Loopt was a lemon, dropping to under a million daily active users prior to sale (updated)

March 9, 2012 4:23 PM Jennifer Van Grove
Jennifer Van Grove

[Update: Loopt founder Sam Altman says the 500 DAU number is off by more than 100 times, and says he'll be posting data shortly to prove it. We'll update more as soon as he posts the data.]

[Update …

Y Combinator’s latest partners are also alums

June 13, 2011 12:22 PM Anthony Ha
Anthony Ha

Silicon Valley incubator Y Combinator is bringing some of its most notable alumni back into the fold — as partners.

In a blog post today, partner Paul Graham announced that Loopt founder Sam Altman (pictured), Justin.tv founders Emmett Shear and …