Knowledge (XXG)

2015 TalkTalk data breach

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accounts. On 6 November, TalkTalk stated that the impact of the breach was "much more limited than initially suspected", adding that 156,959 customer accounts were involved, from which 15,656 sort codes and bank account numbers had been taken. Partial data on 28,000 credit and debit cards was also stolen, but that data was insufficient for carrying out transactions on those cards. TalkTalk stated that the lost data had not been encrypted, and that they had not been legally required to encrypt it.
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It was initially thought that up to 4 million customers could be affected by the breach. On 24 October, TalkTalk issued a statement saying that a "materially lower" amount of customers’ financial information was stolen, and that the stolen data was not sufficient for money to be taken from bank
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In September 2016, hacker Daniel Kelley was charged with blackmail, computer hacking, and fraud in connection with the TalkTalk data breach and various other attacks. He pleaded guilty to 11 of the offences later that year. He was sentenced to 4 years jail time in 2019.
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In the course of the attack, TalkTalk received a ransom demand from a group claiming to be responsible. Some customers complained that they were targeted by criminals before TalkTalk disclosed the cyber-attack, and the Chair of the
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experienced a cyber attack that resulted in a data breach. As a consequence, personal and banking details of around 160,000 customers were illegally accessed.
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said "Suggestions that TalkTalk has covered up both the scale and duration of this attack ... must be thoroughly investigated."
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In November 2018, two further suspects were found guilty of cybercrime charges in connection with the data breach.
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The direct and indirect costs of the attack for TalkTalk have been estimated at
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77 million. On 5 October 2016, TalkTalk was fined £400,000 by the
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In October 2015, British telecommunications provider
288:"Two men jailed for involvement in TalkTalk hacking" 137:"TalkTalk faces new questions over cyber attack" 8: 387:"TalkTalk hack 'affected 157,000 customers'" 83:for its negligence on securing client data. 455:"TalkTalk fined £400,000 over cyber theft" 92: 465:from the original on 22 November 2016. 443:from the original on 8 December 2016. 7: 224: 222: 117:from the original on 23 October 2015 25: 488:2015 crimes in the United Kingdom 294:. Press Association. 2018-11-19. 196:. Press Association. 2016-09-27. 81:Information Commissioner's Office 47:The attack was carried out using 335:from the original on 2022-11-27 306:from the original on 2022-11-26 269:from the original on 2023-02-05 240:from the original on 2022-11-01 208:from the original on 2023-06-14 171:from the original on 2023-03-14 1: 37:Home Affairs Select Committee 353:Gayle, Damien (2015-10-24). 509: 43:Attack and perpetrators 18:Daniel Kelley (hacker) 417:www.theregister.com 141:www.telegraph.co.uk 113:. 23 October 2015. 461:. 5 October 2016. 439:. 5 October 2016. 16:(Redirected from 500: 467: 466: 451: 445: 444: 433: 427: 426: 424: 423: 411:Fiveash, Kelly. 408: 402: 401: 399: 398: 383: 377: 376: 374: 373: 350: 344: 343: 341: 340: 321: 315: 314: 312: 311: 284: 278: 277: 275: 274: 255: 249: 248: 246: 245: 226: 217: 216: 214: 213: 186: 180: 179: 177: 176: 157: 151: 150: 148: 147: 133: 127: 126: 124: 122: 97: 21: 508: 507: 503: 502: 501: 499: 498: 497: 473: 472: 471: 470: 453: 452: 448: 435: 434: 430: 421: 419: 410: 409: 405: 396: 394: 385: 384: 380: 371: 369: 352: 351: 347: 338: 336: 323: 322: 318: 309: 307: 286: 285: 281: 272: 270: 257: 256: 252: 243: 241: 228: 227: 220: 211: 209: 188: 187: 183: 174: 172: 159: 158: 154: 145: 143: 135: 134: 130: 120: 118: 99: 98: 94: 89: 73: 64: 45: 23: 22: 15: 12: 11: 5: 506: 504: 496: 495: 490: 485: 475: 474: 469: 468: 446: 428: 403: 378: 345: 331:. 2015-10-23. 316: 279: 265:. 2018-11-19. 250: 236:. 2019-06-10. 218: 181: 165:cyberstart.com 152: 128: 91: 90: 88: 85: 72: 69: 63: 60: 44: 41: 24: 14: 13: 10: 9: 6: 4: 3: 2: 505: 494: 493:Data breaches 491: 489: 486: 484: 481: 480: 478: 464: 460: 456: 450: 447: 442: 438: 432: 429: 418: 414: 407: 404: 392: 388: 382: 379: 368: 364: 360: 356: 349: 346: 334: 330: 326: 320: 317: 305: 301: 297: 293: 289: 283: 280: 268: 264: 260: 254: 251: 239: 235: 231: 225: 223: 219: 207: 203: 199: 195: 191: 185: 182: 170: 166: 162: 156: 153: 142: 138: 132: 129: 116: 112: 108: 107: 102: 96: 93: 86: 84: 82: 78: 70: 68: 61: 59: 56: 52: 50: 49:SQL injection 42: 40: 38: 32: 30: 19: 483:Cyberattacks 458: 449: 431: 420:. Retrieved 416: 406: 395:. Retrieved 393:. 2015-11-06 390: 381: 370:. Retrieved 359:The Guardian 358: 348: 337:. Retrieved 328: 319: 308:. Retrieved 292:The Guardian 291: 282: 271:. Retrieved 262: 253: 242:. Retrieved 233: 210:. Retrieved 194:The Guardian 193: 184: 173:. Retrieved 164: 155: 144:. Retrieved 140: 131: 119:. Retrieved 104: 95: 74: 65: 57: 53: 46: 33: 26: 477:Categories 422:2023-08-01 397:2023-08-01 372:2023-08-01 339:2023-07-13 310:2023-07-13 273:2023-07-13 244:2023-07-13 212:2023-07-13 175:2023-07-13 146:2023-08-01 121:23 October 87:References 367:0261-3077 300:0261-3077 202:0261-3077 71:Aftermath 463:Archived 459:BBC News 441:Archived 391:BBC News 333:Archived 329:BBC News 304:Archived 267:Archived 263:BBC News 238:Archived 234:BBC News 206:Archived 169:Archived 115:Archived 106:BBC News 29:TalkTalk 365:  298:  200:  62:Scope 363:ISSN 296:ISSN 198:ISSN 123:2015 111:BBC 479:: 457:. 415:. 389:. 361:. 357:. 327:. 302:. 290:. 261:. 232:. 221:^ 204:. 192:. 167:. 163:. 139:. 109:. 103:. 51:. 425:. 400:. 375:. 342:. 313:. 276:. 247:. 215:. 178:. 149:. 125:. 77:£ 20:)

Index

Daniel Kelley (hacker)
TalkTalk
Home Affairs Select Committee
SQL injection
£
Information Commissioner's Office
"TalkTalk cyber-attack: Boss 'very sorry for security breach'"
BBC News
BBC
Archived
"TalkTalk faces new questions over cyber attack"
"How an outdated database led to a data breach: Unpicking the TalkTalk cyber attack"
Archived
"Teenager appears in court over TalkTalk cyber-attack"
ISSN
0261-3077
Archived


"TalkTalk hacker Daniel Kelley sentenced to four years"
Archived
"TalkTalk hack attack: Friends jailed for cyber-crimes"
Archived
"Two men jailed for involvement in TalkTalk hacking"
ISSN
0261-3077
Archived
"TalkTalk cyber-attack: Boss 'receives ransom email'"
Archived
"TalkTalk cyber-attack not as bad as first thought, company says"

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