United Parcel Service Inc. announced Wednesday that 51 of its stores across 24 states had experienced a data breach. The compromised data was from nearly 105,000 transactions between Jan. 20 and Aug. 11, 2014.

According to a UPS spokesman, customers will not receive notifications since the company does not have every cardholder's information. UPS Store Inc.'s website will list all affected stores, customers should check there if they have shopped at one of the 51 breached stores.

The spokesperson added that the company is not sure how many customers this will affect, only the number of obtained transactions.

This relatively small number of UPS stores -- roughly 1 percent of over 4,400 stores -- run on private networks, UPS said. However, these locations were widespread, 24 states were involved including California, Florida, Texas and New York. The UPS network in other areas were not affected, according to reports on The Wall Street Journal.

The company said the electronic information was penetrated by software that stole information including names, postal and email addresses as well as credit or debit card data. A notification from the government alerted the company to the malicious software, which had gone undetected by their antivirus software. UPS reported that the malware was eliminated on Aug. 11 and has not observed any fraud they can connect to the information hack.

"As soon as we became aware of the potential malware intrusion, we deployed extensive resources to quickly address and eliminate this issue," president of the UPS Store subsidiary Tim Davis said. "Our customers can be assured that we have identified and fully contained the incident."

UPS Store Inc. is the latest in a series of invasions of retailers' data in recent years. Target Corp., Neiman Marcus Group and Supervalu grocers all had similar attacks on cardholders' information. In the same fashion, the data was obtained at point-of-sale, when credit or debit cards are swiped.