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NEW YORK, NY and SAN DIEGO, CA – July 13, 2021  – Wolf Haldenstein Adler Freeman & Herz LLP, a preeminent national consumer rights law firm, announces that it  is investigating claims on behalf of Morgan Stanley’s StockPlan Connect participants.

On July 2, 2021, Morgan Stanley reported to the New Hampshire Attorney General’s office that on May 20, 2021, it learned from Guidehouse, a vendor to its stock plan business, that Guidehouse had suffered a data beach in January 2021 involving personal stock plan participant information obtained by an unauthorized individual.  Morgan Stanley stock plan regularly sends a secure file to Guidehouse of existing stock plan long shareholders scheduled for escheatment and engages Guidehouse to obtain current contact information for these stock plan participants prior to the escheatment process commencing.  Although the files were purportedly encrypted, the unauthorized individual was able to obtain the decryption key during the data breach.  The following participant information was involved:  name, address (last known address), date of birth, Social Security number, and corporate company name.

Wolf Haldenstein Adler Freeman & Herz LLP  has extensive experience in the prosecution of consumer rights litigation in state and federal trial and appellate courts across the country.  The firm has attorneys in various practice areas; and offices in New York, Chicago and San Diego.  The reputation and expertise of this firm has been repeatedly recognized by the courts, which have appointed it to major positions in complex consolidated litigation.

If you received a NOTICE OF DATA BREACH from Morgan Stanley and you reside in the United States, if you wish to discuss this investigation, or if you have any questions regarding your rights and interests in this matter, please immediately contact Wolf Haldenstein by telephone at (800) 575-0735 or via e-mail at


Wolf Haldenstein Adler Freeman & Herz LLP

Gregory Stone, Director of Case and Financial Analysis

Rachele R. Byrd, Esq.

Email: or

Tel: (800) 575-0735 or (619) 239-4599