| Date | Name | Records Compromised | Description |
| 1/10/2005 | George Mason University | 32000 | Names, photos, and Social Security numbers of 32,000 students and staff were compromised because of a hacker attack on the university's main ID server. |
| 1/18/2005 | University of San Diego | 3500 | A hacker breached the security of two University computers that stored the Social Security numbers and names of students and alumni of UCSD Extension. |
| 1/22/2005 | University of Northern Colorado | 15790 | A hard drive was apparently stolen. It contained information on current and former University employees and their beneficiaries -- name, date of birth, SSN, address, bank account and routing number.. |
| 2/12/2005 | SAIC | 45000 | On Jan. 25 thieves broke into a SAIC facility and stole computers containing names, SSNs, and other personal information of past and current employees. Stolen information included names, NNS, addresses, phone numbers and records of financial transactions. |
| 2/18/2005 | University of Chicago Hospital | 85 | Dishonest insider |
| 2/21/2005 | T-Mobile | 400 | |
| 2/26/2005 | Bank of America | 1000000 | Lost backup tape |
| 2/26/2005 | New York State | | |
| 3/1/2005 | Paymaxx | 100000 | Exposed online |
| 3/2/2005 | University of California Davis | 1100 | The names and Social Security numbers of students, faculty, visiting speakers and staff may have been compromised when a hacker accessed a main computer. |
| 3/8/2005 | DSW/Retail Ventures | 100000 | Hacking |
| 3/11/2005 | ChoicePoint | 163000 | Bogus accounts established by ID thieves. The initial number of affected records was estimated at 145,000 but was later revised to 163,000. |
| 3/11/2005 | Kaiser Permanente | 140 | A disgruntled employee posted informaton on her blog noting that Kaiser Permanente included private patient information on systems diagrams posted on the Web. |
| 3/11/2005 | Las Vegas DMV | 8900 | Stolen computer. |
| 3/16/2005 | Chico State University | 59000 | |
| 3/17/2005 | Boston College | 120000 | Hacking |
| 3/18/2005 | State of Michigan | | |
| 3/19/2005 | University Nevada Las Vegas | 5000 | Hacking |
| 3/20/2005 | Northwestern Univ. | 21000 | Hacking |
| 3/22/2005 | Calif. State Univ. | 59000 | Hacking |
| 3/23/2005 | University of California San Francisco | 7000 | Hacking |
| 3/25/2005 | Purdue University | 1200 | Computers in the College of Liberal Arts' Theater Dept. were hacked, exposing personal information of employees, students, graduates, and business affiliates. |
| 3/28/2005 | University California Berkeley | 98369 | Stolen laptop |
| 4/6/2005 | University of California, San Francisco | 7000 | A server in the accounting and personnel departments was hacked. It contained information on 7,000 students, faculty, and staff members. The affected individuals were notified March 23. |
| 4/8/2005 | San Jose Medical Group | 187000 | Stolen computer |
| 4/8/2005 | Eastern National | 15000 | Hacker |
| 4/12/2005 | Lexis-Nexis | 310000 | Passwords compromised |
| 4/12/2005 | National Park Service | 15000 | |
| 4/12/2005 | Tufts University | 106000 | Hacking |
| 4/14/2005 | Calif. Fastrack | 4500 | Dishonest Insider |
| 4/15/2005 | Polo Ralph Lauren | 180000 | Hacking |
| 4/20/2005 | Ameritrade | 200000 | Lost backup tape |
| 4/21/2005 | Carnegie Mellon University | 19000 | Hacking |
| 4/26/2005 | Christus St. Joseph Hospital | 16000 | Stolen computer |
| 4/28/2005 | Georgia Southern University | | Hacking |
| 4/29/2005 | Florida International University | | |
| 5/2/2005 | Colorado State Health Dept. | 1600 | Stolen laptop |
| 5/5/2005 | Arbella Mutual Insurance Company | | |
| 5/6/2005 | Michigan State University | 40000 | Hacking |
| 5/12/2005 | Hinsdale Central High School | | Hacking |
| 5/12/2005 | Westborough Bank | 750 | Dishonest insider |
| 5/14/2005 | Georgia Technology Authority | 465000 | Dishonest insider |
| 5/16/2005 | Oklahoma State University | 37000 | Missing laptop |
| 5/18/2005 | University of Iowa | 30000 | Hacking |
| 5/22/2005 | Valdosta State University | 40000 | Hacking |
| 5/23/2005 | Bank of America / Wachovia | 676000 | Dishonest insiders |
| 5/23/2005 | Jackson Community College | 8000 | Hacking |
| 5/23/2005 | MCI | 16500 | Stolen laptop |
| 5/25/2005 | North Carolina Div. of Motor Vehicles | | On Feb. 10, an employee downloaded addresses of 3.8 million people but was detected and stopped before being able to retrieve more sensitive information such as driver's license numbers. |
| 5/25/2005 | Purdue University | 11360 | Hacking |
| 5/27/2005 | Stanford University | 9600 | Hacking |
| 5/28/2005 | Merlin Information Services | 5875 | Bogus acct. set up |
| 5/31/2005 | California Dept. Health Services | 21600 | Stolen laptop |
| 6/1/2005 | US Dept. Of Justice | 80000 | Stolen laptop |
| 6/4/2005 | Cleveland State University | 44000 | Stolen laptop |
| 6/4/2005 | Duke University Medical Center | 14000 | Hacking |
| 6/6/2005 | Citigroup | 3900000 | Lost backup tapes |
| 6/13/2005 | Motorola | | Computers stolen |
| 6/17/2005 | Federal Deposit Insurance Corp. | 6000 | Not Disclosed/Unknown |
| 6/17/2005 | University of Hawaii | 150000 | Dishonest Insider |
| 6/19/2005 | Visa MasterCard American Express | 40000000 | Hacking |
| 6/21/2005 | CVS Corp. | | |
| 6/22/2005 | East Carolina Univ. | 250 | Hacking |
| 6/22/2005 | Eastman Kodak Co. | 5800 | Stolen laptop |
| 6/23/2005 | Kent State University | 1400 | Stolen laptop |
| 6/27/2005 | U.S. Dept. of Veteran's Affairs | 66 | A laptop being stored in the trunk of a car was stolen in Minneapolis, Minnesota. 2 people later reported identity fraud problems. |
| 6/28/2005 | Lucas Cty. Children Services (OH) | 900 | Exposed by email |
| 6/28/2005 | University of Connecticut | 72000 | Hacking |
| 6/29/2005 | Medica Health Plans | 1200000 | |
| 6/30/2005 | Bank of America | 18000 | Stolen laptop |
| 6/30/2005 | DSW Shoes | 1496000 | Hacking |
| 7/1/2005 | University of San Diego | 3300 | Hacking |
| 7/6/2005 | Ohio State Univ. Medical Center | 15000 | Stolen laptop |
| 7/6/2005 | Time Warner Inc. | 600000 | Lost backup tapes |
| 7/7/2005 | Michigan State University | 27000 | Hacking |
| 7/8/2005 | City National Bank | | Lost backup tapes |
| 7/9/2005 | University of Southern Cailfornia | 270000 | Hacking |
| 7/13/2005 | Arizona Biodyne | 57000 | |
| 7/20/2005 | Iowa State University | 4410 | |
| 7/21/2005 | University of Colorado at Boulder | 42000 | Hacking |
| 7/25/2005 | St. John's Regional Med. Ctr. | 27000 | |
| 7/28/2005 | California State University Dominguez Hills | 9614 | Hacking |
| 7/29/2005 | San Diego Co. Emp. Ret. Assoc. | 32000 | Hacking |
| 7/30/2005 | Austin Peay State University | 2772 | |
| 8/3/2005 | University of Colorado | 36000 | Hacking |
| 8/4/2005 | Anderson College | 800 | |
| 8/4/2005 | Cal Poly Pomona | 31077 | Hacking |
| 8/5/2005 | Madison Area Technical College | 100 | |
| 8/9/2005 | Federal Reserve Bank | | |
| 8/9/2005 | Sonoma State University | 61709 | Hacking |
| 8/9/2005 | University of North Texas | 38607 | |
| 8/10/2005 | University of Utah | 100000 | Hacking |
| 8/12/2005 | Verizon Wireless | | |
| 8/15/2005 | California State University Stanislaus | 877 | Hacking |
| 8/19/2005 | United States Air Force | 33000 | Hacking |
| 8/19/2005 | University of Colorado | 49000 | Hacking |
| 8/27/2005 | University of Florida | 3851 | Stolen Laptop |
| 8/30/2005 | California State University | 154 | Hacking |
| 8/30/2005 | JPMorgan Chase | | Stolen laptop (Aug. 8) containing personal and financial account information of customers of its private bank. |
| 8/30/2005 | Stark State College of Technology | 7058 | |
| 9/2/2005 | Iowa Student Loan | 165000 | |
| 9/10/2005 | Kent State University | 100000 | Stolen computers |
| 9/13/2005 | Fort Carson | 9300 | |
| 9/16/2005 | ChoicePointá | | ID thieves accessed; also misuse of IDs & passwords. (2nd notice, see 2/15/05) |
| 9/16/2005 | Miami Ohio University | 21762 | Exposed online |
| 9/17/2005 | North Fork Bank | 9000 | Stolen laptop (7/24/05) with mortgage data |
| 9/19/2005 | Children's Health Council | 6700 | Stolen backup tape |
| 9/22/2005 | Internal Revenue Service | 30000 | |
| 9/28/2005 | City University of New York | 771 | Exposed online |
| 9/28/2005 | RBC Dain Rauscher | 300000 | Illegitimate access to customer data by former employee |
| 9/29/2005 | University of Georgia | 1600 | Hacking |
| 10/7/2005 | Bank of America | | |
| 10/8/2005 | Blockbuster | | |
| 10/12/2005 | Ohio State Univ. Medical Center | 2800 | Exposed online. Appointment information including SSN, DOB, address, phone no., medical no., appointment reason, physician. |
| 10/15/2005 | Montclair State University | 9100 | Exposed online |
| 10/20/2005 | Vermont Technical College | | |
| 10/20/2005 | Monmouth University | 677 | |
| 10/20/2005 | Wilcox Memorial Hospital | 130000 | Lost backup tape |
| 10/21/2005 | State of California | | |
| 10/29/2005 | University of Tennessee | 1900 | |
| 11/1/2005 | University of Tennessee Med. Ctr. | 3800 | Stolen laptop |
| 11/4/2005 | Keck School of Medicine (USC) | 50000 | Stolen computer |
| 11/5/2005 | Safeway Inc. | 1400 | Stolen laptop |
| 11/7/2005 | Papa John's | | |
| 11/8/2005 | ChoicePoint | | Bogus accounts established by ID thieves. Total affected now reaches 163,000 |
| 11/9/2005 | TransUnion LLC | 3623 | Stolen computer |
| 11/11/2005 | Georgia Tech University | 13000 | Stolen computer, Ofc. of Enrollment Services |
| 11/18/2005 | Indiana University Kelley School of Business | 5278 | |
| 11/18/2005 | Boeing Co. | 161000 | Stolen laptop with HR data incl. SSNs and bank account info. |
| 11/23/2005 | University of Delaware | 952 | |
| 11/26/2005 | Scottrade | 140000 | Hacking |
| 12/2/2005 | Cornell University | 900 | Hacking. Names, addresses, SSNs, bank names and acct. numbers. |
| 12/3/2005 | University of San Diego | 7800 | Hacking. Faculty, students and employee tax forms containing SSNs |
| 12/3/2005 | First Trust Bank | | Stolen laptop |
| 12/6/2005 | Washington St. Employment Security Dept. | 530 | Stolen laptop. Names, SSNs and earnings of former employees. |
| 12/8/2005 | Federal Reserve Bank | | |
| 12/8/2005 | J-Sargeant Reynolds Community College | 26000 | |
| 12/8/2005 | San Antonio Independent School District | | |
| 12/9/2005 | Idaho State University | | ISU discovered a security breach in a server containing archival information about students, faculty, and staff, including names, SSNs, birthdates, and grades. |
| 12/9/2005 | Oregon Community Credit Union | 200 | |
| 12/12/2005 | Sam's Club | | Exposed credit card data at gas stations. |
| 12/12/2005 | Iowa State University | 5500 | Hacking. Credit card information and Social Security numbers. |
| 12/16/2005 | Colorado Tech. Univ. | 1200 | Email erroneously sent containing names, phone numbers, email addresses, Social Security numbers and class schedules. |
| 12/19/2005 | Guidance Software | 3800 | Hacking. Customer credit card numbers. |
| 12/21/2005 | LaSalle Bank | 2000000 | Backup tape with residential mortgage customers lost in shipment by DHL, containing SSNs and account information. |
| 12/22/2005 | Ford Motor Company | 70000 | Stolen computer. Names and SSNs of current and former employees. |
| 12/28/2005 | Marriott International | 206000 | |