Skip to content
City PM
  • Germany
  • France
  • Europe
  • Markets
  • Business
  • Opinion
  • DE
  • Germany
  • France
  • Europe
  • Markets
  • Business
  • Opinion
  • DE
Friday 30 October 2015 1:16 pm

TalkTalk share price soars as internal investigation shows hack affected “significantly” fewer customers than originally thought

By: Clara Guibourg

Add as a preferred source on Google

The number of people affected by the TalkTalk hack unveiled last Thursday is “significantly less” than originally suspected, the company said today.

Hoping to reassure worried customers, TalkTalk has released official figures based on an internal investigation showing how many people had their data accessed, revealing that some 20,000 bank account numbers and 28,000 partially obscured credit card details were accessed.

The investigation also showed that some 1.2 million customer email addresses, names and phone numbers were accessed – far lower than the 4 million initially feared to have been affected.

[infographic id="381"]

The company also stressed that the bank details cannot be used for financial transactions – but still advises all customers to be "vigilant" against telephone or email scams. 

Dido Harding, TalkTalk’s chief executive, said that the company remained “committed” to earning back customers’ trust:

Today we can confirm that the scale of attack was much smaller than we originally suspected, but this does not take away from how seriously we take what has happened and our investigation is still ongoing.

Voices have been raised for Harding's resignation over the massive hack, but the embattled chief exec has shown no signs of bowing to this pressure. 

Investors were immediately buoyed by the figures released today, and TalkTalk's shares, which have fallen nearly 20 per cent in the days since the hack became known, shot up 2.7 per cent in the minutes after the investigation was made public. 

The Metropolitan Police’s cyber crime unit continues to investigate the case. One 15-year-old was arrested on Monday in Northern Ireland, and a 16-year-old was arrested this morning in Feltham.

Share this article

  • Facebook
  • X
  • LinkedIn
  • WhatsApp
  • Email

Similarly tagged content:

Sections

  • Markets & Economics

Categories

  • Markets

Trending Articles

  • Exclusive: Big Four giant KPMG to cut more jobs

  • Music tycoon Simon Cowell sued by prominent City lawyer

  • The former African gold miner taking on the billionaire Issa brothers

  • Easyjet agrees to £5.7bn Apollo takeover

  • Tesco ‘in talks’ to exit eastern Europe

More from City PM

  • VodafoneThree enters race for TalkTalk customers with takeover bid

    Telecoms
    Vodafone CEO Margherita Della Valle discussing UK expansion strategy after £4.3bn Vodafone-Three telecoms deal at press c...
  • Lloyds Bank and Halifax customers hit with app outage

    Banking
    Lloyds is plotting to beef up its wealth offering.
  • EY grad sacked down under for allegedly accessing PM’s bank account

    Big Four
    EY London headquarters building exterior on a sunny day, showcasing modern architecture in the citys business district
  • HSBC coughs up $25m over Australian scam failures

    Banking
    HSBC's Canary Wharf office.
  • Virgin Media slapped with £28m fine for stopping customers cancelling deals

    Telecoms
    Vans parked at a bustling city intersection surrounded by tall buildings and pedestrians, highlighting urban transportatio...
  • HMRC has been overtaxing pensioners for a decade- have you been affected?

    Personal Finance
    HMRC overcharged pensioners thousands
  • Perch Group Eases the Burden on Grieving Families by Forming Partnership With Leading Bereavement Notification Service NotifyNOW

    Business Wire
  • Smartstream Launches Smart Agents for Back-Office Operations, Proven Across Tier 1 Pilots

    Business Wire

City PM — European politics, business and analysis.

Europe

  • Germany
  • France
  • Europe
  • UK & Ireland

Topics

  • Business
  • Markets
  • AI
  • Technology
  • Opinion
  • Energy

More

  • Politics
  • Economics
  • Fintech
  • Legal
  • Sport
  • Life

Company

  • About City PM
  • Editorial Policy
  • Corrections
  • Contact
  • Terms of Use
  • Privacy Policy
  • Cookie Policy
© 2026 City PM · Published by CityPM Media, Bahnhofstrasse 65, 8001 Zürich, Switzerland
About · Editorial Policy · Corrections · Contact · Privacy · Facebook