- Twitter (NYSE:TWTR) is now banning ads from Russia's Kaspersky Lab, makers of widely used personal computer security and antivirus software.
- Twitter points to U.S. claims that Kaspersky is linked to Russian intelligence, and says the company's business model conflicts with its advertising rules.
- Shares are up 1.4% now; earlier, MKM Partners upgraded the stock to Buy with a $40 price target (current price is $31.99).