Marquis Software Solutions Data Breach Class Action
Verified September 19, 2026Found via the federal court docketHow ClaimWatch verifies cases
Still being litigated: the claims below are allegations, not findings, and there is no settlement, claim form or payout yet.
Where this case stands
In litigation
The case has been filed and is being fought in court. There is no settlement, no claim form and no payout yet; many class actions are dismissed or never certified.
Pending in the District Court, E.D. Texas (No. 4:25-cv-01277).
- November 21, 2025Case filed
What happened
This proposed class action concerns an alleged data breach at Marquis Software Solutions, Inc. The lawsuit alleges that personal information of class members was compromised. Affected individuals are seeking recovery for damages and relief related to the unauthorized disclosure of their data.
Do you qualify?
No settlement exists yet, so there is nothing to file and no class definition to check. If the case settles, the settlement will define exactly who qualifies — watch this case and we'll let you know.
How to file
There is no claim to file yet. If this case reaches a settlement, a claim process will open — usually with an official settlement website and a filing deadline.
Common questions
- Can I file a claim in the Marquis Software Solutions Data Breach Class Action case?
- No. The case is still being litigated — there is no settlement, no claim form, and no payout. It was filed November 21, 2025 in the District Court, E.D. Texas (No. 4:25-cv-01277).What a class action lawsuit is →
- Who are the attorneys in the Marquis Software Solutions Data Breach Class Action?
- For the plaintiffs: Plaintiffs (PRO SE); Stefon David (Stueve Siegel Hanson LLP); Norman Siegel (Stueve Siegel Hanson LLP); Sara J. Watkins (Robert Peirce & Associates, P.C.). For Marquis Software Solutions, Inc.: Matthew Medina (Arnold & Porter Kaye Scholer LLP); Kenneth Chernof (Arnold & Porter LLP); J.T. Malatesta (Polsinelli PC); Daniel Raymond (Arnold & Porter Kaye Scholer LLP). From the public court docket.
Who's involved
Plaintiffs
- Plaintiffs
- Kathleen Matlock
- Robert Harris
- James Dull
- Edward Hellyer
- Kristin Bowles
- Joseph Ridout
- John Hamisch
+ 42 more
Defendants
- Westerra Credit Union(Consol Defendant)
- Florida Credit Union(Consol Defendant)
- Security Credit Union(Consol Defendant)
- SonicWall, Inc.
- Marquis Software Solutions, Inc.(Consol Defendant)
- University Credit Union(Consol Defendant)
- First National Bank of Pennsylvania(Consol Defendant)
- Wesbanco Bank, Inc.
+ 7 more
Counsel for plaintiffs
- PlaintiffsPRO SERepresents Plaintiffs2 tracked cases
- Stefon DavidStueve Siegel Hanson LLPRepresents Michelle Jinks, Christopher Raucci, Larry Domenichello4 tracked cases · $117.5M in disclosed settlementsdavid@stuevesiegel.com · (816) 714-7125
- Norman SiegelStueve Siegel Hanson LLPRepresents Michelle Jinks, Christopher Raucci, Larry Domenichello18 tracked cases · $31.5M in disclosed settlementssiegel@stuevesiegel.com · (816) 714-7100
- Sara J. WatkinsRobert Peirce & Associates, P.C.Represents Edythe Bellissimo, Jerry Livingston10 tracked casesswatkins@peircelaw.com · (412) 281-7229
- W Mark LanierLanier Law FirmRepresents Christopher Raucci, Larry Domenichello9 tracked casesMark.Lanier@LanierLawFirm.com · (713) 659-5200
- Liberato P VerderameEdelson Lechtzin LLPRepresents Mark Schott37 tracked cases · $4.0M in disclosed settlementslverderame@edelson-law.com · (215) 867-2399
- Shauna ItriSeeger Weiss LLPRepresents Michelle Jinks12 tracked cases · $40M in disclosed settlementsaarteaga@seegerweiss.com · (267) 973-4265
- Jean Sutton MartinAylstock, Witkin, Kreis & OverholtzRepresents Michelle Jinks7 tracked cases · $36.6M in disclosed settlementsjmartin@awkolaw.com · (850) 266-2893
- Charles E SchafferLevin Sedran & BermanRepresents Natalie Krall100 tracked cases · $578.4M in disclosed settlementscschaffer@lfsblaw.com · (215) 592-1500
- Jeffrey S GoldenbergGoldenberg Schneider LPARepresents Natalie Krall60 tracked cases · $450.7M in disclosed settlementsjgoldenberg@gs-legal.com · (513) 345-8291
- Emil Lippe , JrLaw Offices of Lippe & AssociatesRepresents Connor Rhinehart11 tracked casesemil@texaslaw.com · (214) 855-1850
- Amanda Grace FiorillaLowey Dannenberg, P.C.Represents Griffin Beaty16 tracked cases · $529.6M in disclosed settlementsafiorilla@lowey.com · (914) 733-7266
- Mark T. FreemanCole & Van NoteRepresents Gerald Spencer, Deb Vines, Stephanie Maldonado5 tracked casesmtf@colevannote.com · (510) 891-9800
- Jessica Andrea WilkesFederman & SherwoodRepresents Michaela Brown41 tracked cases · $10.3M in disclosed settlementsjaw@federmanlaw.com · (405) 235-1560
- Benjamin Francis FosterFoster Yarborough Killingsworth PLLCRepresents Lawrence Spohrleder2 tracked casesben@fosteryarborough.com · (713) 331-5254
- Donald Patrick Arthur YarboroughFoster Yarborough Killingsworth PLLCRepresents Lawrence Spohrleder9 tracked casespatrick@fyktriallaw.com · (713) 331-5254
- Leigh Skye MontgomeryEKSM, LLPRepresents Jessica Boutot, William Anderson, Nellie Raymond, Leah Erban, Shannon Noreika, Anita Seecharran, Jesus Garcia81 tracked cases · $4.7M in disclosed settlementslmontgomery@eksm.com · (888) 350-3931
- Leanna Alexis LoginovShamis & Gentile, P.A.Represents Tracy Cusick105 tracked cases · $2.1M in disclosed settlementslloginov@shamisgentile.com · (917) 628-5842
- Andrew John ShamisShamis & Gentile, P.A.Represents Tracy Cusick189 tracked cases · $477.0M in disclosed settlementsashamis@shamisgentile.com · (305) 479-2299
- Raina C BorrelliStrauss Borrelli PLLCRepresents David Robinson, Sr.213 tracked cases · $121.2M in disclosed settlementsraina@straussborrelli.com · (872) 263-1100
- William Kelly StewartK Stewart Law, P.C.Represents Daniel Hartkelly@kstewartlaw.com · (972) 308-6168
- Israel DavidIsrael David LLCRepresents Daniel Hart12 tracked casesisrael.david@davidllc.com · (212) 350-8851
- Thomas LoeserCotchett Pitre & McCarthy LLPRepresents Larry Domenichello25 tracked cases · $392.4M in disclosed settlementstloeser@cpmlegal.com · (206) 802-1272
- Ronald Wright Armstrong , IIThe Armstrong Firm, PLLCRepresents Sally Simmering4 tracked casesrwaii@tafpllc.com · (210) 277-0542
- Gary Michael KlingerMilberg PLLCRepresents Christopher Raucci, Larry Domenichello120 tracked cases · $101.5M in disclosed settlementsgklinger@milberg.com · (866) 252-0878
- Bruce William StecklerRepresents Sally Lester, Kathy Yunk, Diane Dzilvelis36 tracked cases · $6.4M in disclosed settlementsbruce@stecklerlaw.com · (972) 387-4040
- Beena M McDonaldChimicles Schwartz Kriner & Donaldson-Smith LLPRepresents Tina Baroni14 tracked cases · $50M in disclosed settlementsbmm@chimicles.com · (610) 642-8500
- William B FedermanFederman & SherwoodRepresents Christina Anstett, Anterio Mayhew, Preston Holod, Sandra Copeland, Pamela Noble, Dann Frias, Luke Tibbetts, Mark Schott, Derwin Hillmon, Michaela Brown, Cheryl Fannin, Evee Malone129 tracked cases · $472.9M in disclosed settlementswbf@federmanlaw.com · (405) 235-1560
- Jonathan Stephen MannPITTMAN, DUTTON & HELLUMS, P.C.Represents Michelle Jinks5 tracked cases · $62M in disclosed settlementsjonm@pittmandutton.com · (205) 322-8880
- Jeff OstrowKopelowitz Ostrow P.A.Represents Michelle Jinks, Larry Domenichello105 tracked cases · $31.7M in disclosed settlementsostrow@kolawyers.com · (954) 525-4100
- Elton Joe KendallKendall Law GroupRepresents Michelle Jinks, Marlene Ehler, Stanley Piszczor, John Hamisch, Joseph Ridout, Kristin Bowles, Edward Hellyer, James Dull, Robert Harris, Kathleen Matlock, Christopher Raucci, Larry Domenichello, David Robinson, Sr., Joshua Geoffrey8 tracked casesjkendall@kendalllawgroup.com · (214) 744-3000
Counsel for defendants
- Matthew MedinaArnold & Porter Kaye Scholer LLPRepresents SonicWall, Inc.Matthew.Medina@arnoldporter.com · (212) 836-8057
- Kenneth ChernofArnold & Porter LLPRepresents SonicWall, Inc.3 tracked casesken.chernof@arnoldporter.com · (202) 942-5940
- J.T. MalatestaPolsinelli PCRepresents SonicWall, Inc.jtmalatesta@polsinelli.com · (205) 963-7138
- Daniel RaymondArnold & Porter Kaye Scholer LLPRepresents SonicWall, Inc.7 tracked casesdaniel.raymond@arnoldporter.com · (312) 583-2379
- Robert Gavin CastanedaArnold & Porter Kaye Scholer LLPRepresents SonicWall, Inc.robert.castaneda@arnoldporter.com · (713) 576-2457
- Meagan VanderWeeleGordon Rees Scully Mansukhani, LLPRepresents University Credit Union9 tracked casesmvanderweele@grsm.com · (989) 274-9229
- Julian JonesGordon Rees Scully MansukhaniRepresents University Credit Unionvls_dfwsupport@grsm.com · (214) 518-0838
- Samih EloubeidiPierce Atwood LLPRepresents Norway Savings Bank2 tracked casesseloubeidi@pierceatwood.com · (617) 488-8137
- Melanie ConroyPierce Atwood LLPRepresents Norway Savings Bank3 tracked casesmconroy@pierceatwood.com · (617) 488-8119
- Sean Benjamin SolisBaker & Hostetler LLPRepresents First National Bank of Pennsylvania7 tracked cases · $18M in disclosed settlements defendedssolis@bakerlaw.com · (303) 861-0600
- Tyrone Lamar HaynesMcDowell Hetherington LLPRepresents Wesbanco Bank, Inc.3 tracked casesTyrone.Haynes@mhllp.com · (713) 333-8816
- Kyle TaymanGoodwin Procter LLPRepresents Marquis Software Solutions, Inc.3 tracked cases · $117.5M in disclosed settlements defendedktayman@goodwinlaw.com · (202) 346-4000
- Jordan L. MoranGoodwin Procter LLPRepresents Marquis Software Solutions, Inc.jordanmoran@goodwinlaw.com · (202) 346-4093
- Michele Billera FochtFreeman Mathis & Gary LLPRepresents Maine State Credit Union3 tracked casesmichele.focht@fmglaw.com · (469) 480-7062
- Ryan KillianShook, Hardy & Bacon L. L. P.Represents CoVantage Credit Union, Suncoast Credit Union, Florida Credit Union, Westerra Credit Union4 tracked casesrkillian@shb.com · (713) 227-8008
- Cameron GoodwinPierce Atwood LLPRepresents Norway Savings Bank2 tracked casescgoodwin@pierceatwood.com · (207) 791-1309
- Brian Wade ClarkKane Russell Coleman & Logan PC - DallasRepresents Norway Savings Bankbclark@krcl.com · (214) 777-4200
- James PizzirussoHausfeld LLPRepresents Tyler Malloy52 tracked casesjpizzirusso@hausfeld.com · (202) 540-7200
- Melissa Richards SmithGillam & Smith, LLPRepresents Marquis Software Solutions, Inc.5 tracked casesmelissa@gillamsmithlaw.com · (903) 934-8450
Other cases these firms appear in
- Cognizant and TriZetto Data Security Breach Class Action · Stueve Siegel Hanson LLP
- Bedford v. Cerner Corporation Data Breach Class Action · Stueve Siegel Hanson LLP
- Dossett v. Cerner Corporation Health Records Class Action · Stueve Siegel Hanson LLP
- Sayabath v. Conduent Data Breach Class Action · Stueve Siegel Hanson LLP
- Sayers v. Phoenix Physical Therapy and Rehabilitation Class Action · Robert Peirce & Associates, P.C.
From the public court docket, contact details as filed; not an endorsement.
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Summarised from public settlement documents; confirm terms on the official settlement website. ClaimWatch is not a law firm, and filing a claim is free.