Check out which companies are making headlines after the bell Tuesday:
Wells Fargo - The bank said its website was experiencing an unusually high volume of traffic that it believes stems from a denial-of-service cyber attack. While the vast majority of customers are not impacted and client information remains safe, the company's spokeswoman advised users who have trouble logging in to try again as the disruption is usually intermittent. Shares edged lower in extended-hours trading.
SAIC - The defense company posted earnings of 54 cents a share, topping expectations by 3 cents a share, while revenue was in line with estimates at $2.71 billion, In addition, the company provided full-year revenue guidance that missed, while earnings came in on the lower end of forecasts. But the company announced a special cash dividend of $1 a share. Shares climbed in extended-hours trading.