Chase to raise limits on cards affected by Target breach

Chase announced Monday it will raise limits on credit cards affected by a security breach at Target stores, CNBC has learned.

Chase customers will now be able to withdraw $250 in cash and spend up to $1,000, according to sources familiar with the matter.

Previously, Chase notified customers who used debit cards at Target during the breach that it was limiting use of the cards to cash withdrawals of $100 a day and purchases totaling $300 a day.

Target stolen data on black market

Other banks are also setting spending limits to curb fraud following the breach.

(Read more: Target breach spurs suits, investigations)

Target has said that hackers accessed data on up to 40 million payment cards over 19 days through Dec 15 in the second-largest retail breach in U.S. history. It is not known who is behind the attack or how they accessed Target's network.

Debit cards, unlike credit cards, typically require customers to enter personal identification numbers when they make purchases at store check-out counters. Initial reports of Target's security breach said data may have been taken through devices at its counters.

Over the weekend, Target offered customers a 10 percent discount in its U.S. stores, after CEO Gregg Steinhafel said on Friday that the company would provide free credit monitoring to at-risk customers.

—By with Reuters