Neiman Marcus disclosed on September 30, 2021 that an unauthorized party accessed information tied to some online customer accounts during May 2020. A Maine breach filing listed 4,354,346 affected people, although the information varied by customer. The company’s notice covered account credentials, contact details, payment-card numbers and expiration dates, and virtual gift-card numbers—but said CVV numbers and gift-card PINs were not involved.
Reports that a hacker offered the information for sale should be treated as an allegation, not proof that the data was sold or successfully used. The official company notice and regulatory records establish the unauthorized access and the data categories, but do not independently verify the seller, marketplace listing, price, sample data, or transaction.
What Neiman Marcus disclosed
Neiman Marcus said the unauthorized access occurred in May 2020 and that it learned of the incident in September 2021. Its customer notice said the potentially affected information differed from person to person and could include:
- Names and contact information.
- Payment-card numbers and expiration dates, without CVV numbers.
- Neiman Marcus virtual gift-card numbers, without PINs.
- Online-account usernames and passwords.
- Security questions and answers.
The company said it had engaged Mandiant, notified law enforcement and required password resets for certain customers who had not changed their passwords since May 2020. Neiman Marcus also stated that more than 85% of affected payment and virtual gift cards were expired or invalid. Read the Neiman Marcus notice or its corporate disclosure.
#1 Best Overall
- SHIELD YOUR PRIVACY WITH THE ID DEFENDER ROLLER STAMP: Tired of worrying about your personal information falling into the wrong hands? The ID Defender Roller Stamp offers a simple yet effective solution. With a unique wide camouflage pattern, it quickly and easily conceals sensitive data on a variety of surfaces.
- PRIVACY PROTECTION: useful not only as an ADDRESS BLOCKER or ID POLICE, but also keeps away preying eyes from invoices, authority documents, checks, bank statements and many more.
- SIMPLE TO USE: Just remove the cover and swipe. The wide swipe makes it easy to cover sensitive information.
- VERSATILE APPLICATION: Ideal for a variety of documents, including contracts, court documents, shipping labels, tax returns and more.
- LONG-LASTING INK: The high-quality ink works on both glossy and standard paper and provides up to 330 feet of coverage.
How many people were affected?
A Maine breach-notification record lists 4,354,346 affected individuals. That is the number included in the notification filing, not a finding that every person had every listed data element taken. The same filing records a breach period of May 2–17, 2020, discovery on September 9, 2021, and consumer notification on September 30, 2021.
The dates show a gap between the reported intrusion and its discovery. The available records establish when those events occurred but do not explain why detection took that long, so the timeline alone does not prove concealment or negligence. See the Maine filing.
Rank #2
- Protect Your Privacy Effectively: you can use this identity protection roller stamp to flip personal information in under 2 seconds and save time and effort, effectively hiding and protecting your personal information, such as phone numbers, social security numbers, bank statements, shipping addresses, tax documents,data, billing addresses and many more
- Ideal Replacement for Shredder: if you are still using a shredder to shred cards or papers that are printed with your personal information, this security stamper roller will be an alternative tool to block out your privacy effectively and easily
- Refillable and Long Term Use: this confidential stamp can cover a total length of up to 100 meter/ 109 yards, approximately 3,200 prints are covered, pattern width is about 0.78 inches; When ink runs out, you can refill the security stamp with ink
- Easy to Use: just continuous roll the address blocker roller stamp to conceal information, and roll on a second layer for maximum protection, works on paper, envelopes, folders, address labels, etc., please note that may not work on smooth surfaces
- How to Refill the Ink: there are 4 pieces of ID stamp refills, each is about 1.5 ml, you just need to unscrew the cap of the ink bottle (not disposable, you can close the cap for next time of use), then insert it into the hole on the side of the stamp, then turn it upside down, about 5 minutes later, the most of the ink will be replenished to the security roller stamp
What does “the hacker offered to sell the data” mean?
Security coverage may have described an alleged seller advertising Neiman Marcus information. That wording matters: an offer is not evidence of a completed sale. The official Neiman Marcus notice and state filings confirm unauthorized access, but they do not independently verify the alleged hacker’s identity or alias, the location or date of a marketplace post, the number of records offered, an asking price, payment method, sample records, or any transaction.
Unless a specific security report documents and authenticates those details, they remain unverified claims. Even an authenticated sample would not establish that all 4.35 million notified people had identical records exposed. No available primary record confirms that criminals sold or used the information.
Recommended Free Tools
Rank #3
- The id defender roller is the ultimate tool for guarding your personal data at home or in the office. Prevent identity theft by quickly masking sensitive information on mail, documents, or labels, giving you confidence that your details remain private and secure with Vantamo id theft protection.
- Effortlessly block out sensitive text with the label cover up identity protection, designed for quick, one-handed use. No more scraping off all shipping labels or doing a lot of swipes with a marker! Even first-time users will find the process intuitive and straightforward, making it a practical label eraser roller for anyone!
- Vantamo wide rolling privacy marker is fully refillable and arrives with 6 ink refill for self inking stamps ensuring lasting performance. Don't run out when you need it the most. The ink is specially designed for hiding information.
- Our address blackout stamp not only protects your privacy but also helps the environment. After using the roller on your documents, the paper is ready to be safely recycled, making this address eraser a smart alternative to shredding or tossing documents.
- Here at Vantamo, we are creating products that people love! We are committed to providing excellent customer service on every black out stamp. If you ever have questions or concerns, our team is here to help, ensuring your id defender delivers reliable protection and peace of mind every time.
Which information was potentially involved?
| Category | What the 2021 notice says |
|---|---|
| Account credentials | Usernames, passwords, and security questions and answers may have been involved. |
| Contact data | Names and contact information may have been involved. |
| Payment cards | Card numbers and expiration dates may have been involved; CVV numbers were not listed. |
| Virtual gift cards | Gift-card numbers may have been involved; PINs were not listed. |
| Social Security numbers | Not listed in the 2020–2021 online-account notice. |
| Exact exposure for an individual | Varied by customer and cannot be inferred solely from the total notification count. |
The absence of CVV numbers and gift-card PINs does not eliminate risk. Card numbers can still support attempted fraud, and reused credentials can expose other accounts. Conversely, an expired card or invalid gift card may have little current payment value.
Timeline of the incident
- May 2–17, 2020: The breach period listed in Maine’s filing.
- September 9, 2021: Discovery date listed in that filing.
- September 30, 2021: Neiman Marcus publicly notified customers and disclosed the incident.
What affected customers should do now
1. Replace reused credentials
- Change the Neiman Marcus password, even if the account is no longer used.
- Change every other account that used the same or a similar password. If the password protected email, change the email password first.
- Enable multifactor authentication on email, banking, shopping, social-media and other important accounts.
- Review recovery email addresses, phone numbers and security questions for unauthorized changes.
- Use a password manager to generate a different password for every service. A manager cannot determine whether your data was in this breach; it reduces the damage from credential reuse.
2. Check payment and gift-card activity
- Review bank and card statements for transactions you do not recognize.
- Contact the card issuer through the number on the card or an official statement if fraud appears; ask whether the card should be replaced.
- Check any Neiman Marcus virtual gift-card balance and report suspicious activity through an official Neiman Marcus channel.
3. Review credit reports and consider a freeze
Obtain reports through AnnualCreditReport.com, the official source, and look for unfamiliar accounts or inquiries. A security freeze with Equifax, Experian and TransUnion can restrict access to your credit file for new-account applications. It does not stop misuse of an existing payment card, gift card or online account.
Rank #4
- Personal Information Protection: there are 4 pieces of address blocker roller stamps in 2 different sizes, and 5 pieces of 1.5 ml inks, a total of 9 pieces. Mainly applied to hide information such as social security numbers, bank statements, billing addresses, shipping addresses, tax documents and so on, protecting your personal information
- Re Inking Unlimitedly: the information blocker stamp can cover information of the length about 100 meters. And each security stamper roller has an oil hole, so you don't have to worry about you having to throw away the roller stamps when the ink runs out. They can be refilled with oil for repeated use, saving time and energy
- Cover Fast: our identity protection rollers come in 2 different sizes, and you can choose different sizes according to different areas of information to cover large amounts of private information in a fast and clean way, avoiding identity theft and rejecting privacy disclosure harassment
- Easy to Use: just remove the lid on the ID stamp blocker roller and open it, and then gently slide it on the place where the information needs to be covered. It is suitable for most ordinary paper with black words, and can protect your personal privacy in time
- Save Time and Energy: compared with the shredder, the personal confidential stamp has a small size, easy to carry, can be applied anytime and anywhere. Compared to the marker, it covers a larger area and can be quickly covered with a single swipe. There is no need to worry about whether you can not protect your privacy in time
Use the bureaus’ official freeze pages: Equifax, Experian and TransUnion.
4. Expect phishing attempts
Do not click an unexpected password-reset or breach-related link. Open the Neiman Marcus site by typing its address or using a known bookmark, and contact your bank through its official app or statement. Be suspicious of messages demanding payment, gift-card codes, one-time authentication codes or urgent identity verification. Report suspected identity theft through the FTC’s IdentityTheft.gov.
Best Value
- Personal Information Protection: there are 4 pieces of address blocker roller stamps in 2 different sizes, and 5 pieces of 1.5 ml inks, a total of 9 pieces. Mainly applied to hide information such as social security numbers, bank statements, billing addresses, shipping addresses, tax documents and so on, protecting your personal information
- Re Inking Unlimitedly: the information blocker stamp can cover information of the length about 100 meters. And each security stamper roller has an oil hole, so you don't have to worry about you having to throw away the roller stamps when the ink runs out. They can be refilled with oil for repeated use, saving time and energy
- Cover Fast: our identity protection rollers come in 2 different sizes, and you can choose different sizes according to different areas of information to cover large amounts of private information in a fast and clean way, avoiding identity theft and rejecting privacy disclosure harassment
- Easy to Use: just remove the lid on the ID stamp blocker roller and open it, and then gently slide it on the place where the information needs to be covered. It is suitable for most ordinary paper with black words, and can protect your personal privacy in time
- Save Time and Energy: compared with the shredder, the personal confidential stamp has a small size, easy to carry, can be applied anytime and anywhere. Compared to the marker, it covers a larger area and can be quickly covered with a single swipe. There is no need to worry about whether you can not protect your privacy in time
How to judge your likely risk
Factors that can increase practical risk
- You had a Neiman Marcus online account during or before May 2020.
- You stored a payment card or virtual gift card in it.
- You reused its password elsewhere.
- You received an official notification or now see suspicious login, reset, card or gift-card activity.
Factors that may reduce current risk
- The relevant card or gift card was expired or invalid.
- The password was unique and has been changed.
- No payment information was stored in the account.
- The account was created after the May 2020 incident period.
These factors cannot prove whether an individual was included. The company said the data varied by customer, and the filing’s total is a notification count.
Do not combine this incident with other Neiman Marcus breaches
| Incident | What it involved | Key date or outcome |
|---|---|---|
| 2020–2021 online-account incident | Account credentials, contact information, possible card numbers and expiration dates, and virtual gift-card numbers; CVVs and gift-card PINs were excluded from the notice. | Disclosed September 30, 2021; Maine filing listed 4,354,346 people. |
| 2013 point-of-sale breach | Payment-card data at 77 stores; Texas reported about 370,000 cards and at least 9,200 used fraudulently. | A $1.5 million multistate settlement was announced January 8, 2019. See the Texas attorney general release and North Carolina release. |
| 2024 Snowflake-related incident | Potentially exposed names, email addresses, dates of birth, gift-card information, partial card numbers and the last four Social Security-number digits. | The related $3.5 million settlement’s claim deadline was October 8, 2025; the process is closed. See the settlement site, FAQ and closed-claims page. |
Social Security-number information associated with the 2024 matter should not be transferred into the 2021 online-account story.
What remains unknown
- Who allegedly offered the information and where the offer appeared.
- The alleged listing’s date, price, record count and payment terms.
- Whether any advertised sample was independently authenticated.
- Whether the information was sold, used, or tied to later fraud.
- Which specific data elements, if any, belonged to each notified customer.
The most useful response is therefore practical rather than speculative: replace reused passwords, turn on multifactor authentication, monitor cards and reports, freeze credit when new-account identity theft is a concern, and treat unsolicited breach messages as possible phishing.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →
