Chipotle Mexican Grill on Friday provided details on a payment card security breach in late March and early April, including what stores were hit and on what days.

An investigation of the security incident, first reported April 25, found that malware installed on the company’s system accessed payment card data from point-of-sale devices at a variety of Chipotle and Pizzeria Locale restaurants from March 24 to April 18.

The malware searched for track data coming from the magnet stripe of payment cards. That information can include the name of the cardholder, the card number, expiration date and the verification code.

“There is no indication that other customer information was affected,” Chipotle said in a statement.

Not all locations were hit, but many in Colorado were. The company is providing specific details online of what Chipotle restaurants and Pizzeria Locale locations had security breaches and on what days.

Related Articles April 26, 2017 Chipotle reports payment security problem, rise in sales

In Denver, for example, payment information was vulnerable at 14 Chipotle locations and at the company’s two Pizzeria Locale locations.

The company urged customers who paid with a credit or debit card at an affected location during the time listed to review their payment card statements closely and to report any unauthorized activity by calling the number on the back of the card.

Chipotle said it has removed the malware and is working with cyber security firms to enhance its security. It also notified payment card networks of the breach.

Affected Chipotle restaurants in Colorado

City Address Dates Arvada 8797 Wadsworth Blvd. 3/25–4/8 Arvada 5324 Wadsworth Blvd. 3/25–4/18 Arvada 12550 West 64th Ave. 3/25–4/18 Aurora 6710 S. Cornerstar Way 3/25–4/18 Aurora 4205 S. Buckley Rd. 3/25–4/18 Aurora 3455 North Salida St. 3/27–4/18 Aurora 24100 E. Commons Ave. 3/25–4/18 Aurora 15280 E. Iliff Ave. 3/25–4/18 Aurora 13700 E. Colfax Ave. 3/24–4/18 Aurora 1205 S. Havana 3/25–4/18 Boulder 919 Pearl St. 3/25–4/18 Boulder 1650 28th St. 3/24–4/18 Castle Rock 5642 Allen Way 3/25–4/18 Centennial 20209 E. Smoky Hill Road Unit C 3/25–4/18 Centennial 12073 E Arapahoe Rd Unit 160 4/11–4/18 Colorado Springs 895 North Academy 3/25–4/18 Colorado Springs 7818 North Academy 3/24–4/18 Colorado Springs 5102 North Nevada Ave. 3/25–4/18 Colorado Springs 5079 North Academy 3/25–4/18 Colorado Springs 3026 New Center Point 3/25–4/18 Colorado Springs 2130 Southgate Road 3/25–4/18 Colorado Springs 17 South Tejon 3/25–4/18 Colorado Springs 1370 W. Garden of the Gods Road 3/25–4/18 Commerce City 5988 Dahlia St. 3/25–4/18 Denver 820 S. Monaco St. 3/25–4/18 Denver 745 Colorado Blvd 3/25–4/18 Denver 7400 East 29th Ave. 3/25–4/18 Denver 7350 E. Hampden Ave. 3/24–4/18 Denver 550 Broadway 3/25–4/18 Denver 3600 W. 32nd Ave. 4/3–4/18 Denver 333 E. Alameda 3/25–4/18 Denver 2760 S Colorado Blvd. 3/25–4/18 Denver 2500 E. Colfax Ave. 3/25–4/18 Denver 2300 S. Parker Road 3/25–4/18 Denver 1644 East Evans 3/24–4/18 Denver 1600 California St. 4/11–4/18 Denver 1480 16th St. 3/28–4/18 Denver 140 Steele St. 3/24–4/18 Englewood 8255 South Chester St. 3/25–4/18 Englewood 333 W. Hampden Ave. 3/25–4/18 Federal Heights 10320 Federal Blvd. 3/24–4/18 Fort Collins 649 S College Ave. 3/25–4/18 Fort Collins 2120 E. Harmony Rd. 3/25–4/18 Grand Junction 2504 Highway 6 & 50 3/25–4/18 Greeley 807 17th St. 3/25–4/18 Greenwood Village 8000 E. Belleview Ave. 3/25–4/13 Greenwood Village 6570 S. Yosemite St. 3/25–4/18 Highlands Ranch 2209 W. Wildcat Reserve Parkway 3/25–4/13 Lafayette 548 W. South Boulder Road 3/25–4/18 Lakewood 7355 W. Colfax Ave. 3/24–4/18 Lakewood 355 S. Wadsworth Blvd. 3/25–4/18 Lakewood 3170 S. Wadsworth Blvd. 3/25–4/18 Lakewood 145 Union Blvd. 3/25–4/18 Lakewood 14255 West Colfax Ave. 3/25–4/18 Littleton 9500 Heritage Hills Cir. 3/25–4/18 Littleton 8501 W. Bowles Ave. 3/27–4/18 Littleton 8100 W. Crestline Ave. 3/25–4/8 Littleton 7515 University Blvd. 3/25–4/18 Littleton 5699 S. Broadway 3/25–4/18 Littleton 12512 W. Ken Caryl Ave. 3/25–4/18 Lone Tree 8515 Park Meadows Center Dr. 3/27–4/18 Longmont 1708 Main St. 3/25–4/18 Longmont 1100 Ken Pratt Blvd. 3/25–4/18 Louisville 375 S Mccaslin Blvd. 3/25–4/18 Loveland 1569 Fall River Dr. 3/25–4/18 Loveland 1425 W. Eisenhower Blvd. 3/25–4/18 Parker 18701 E. Main St. 3/25–4/18 Parker 18320 Cottonwood Dr. 3/25–4/18 Pueblo 3230 N. Elizabeth St. 3/25–4/18 Silverthorn 247 Rainbow Dr. 3/25–4/18 Thornton 951 E. 120th Ave. 3/25–4/18 Thornton 815 Thornton Parkway 4/12–4/18 Westminster 5160 W. 120th Ave. 3/25–4/13 Wheatridge 3294-A Youngfield St. 3/25–4/18

Affected Pizzeria Locale restaurants in Colorado