Personnel Today
  • Home
    • All PT content
  • Email sign-up
  • Topics
    • HR Practice
    • Employee relations
    • Learning & training
    • Pay & benefits
    • Wellbeing
    • Recruitment & retention
    • HR strategy
    • HR Tech
    • The HR profession
    • Global
    • All HR topics
  • Legal
    • Case law
    • Commentary
    • Flexible working
    • Legal timetable
    • Maternity & paternity
    • Shared parental leave
    • Redundancy
    • TUPE
    • Disciplinary and grievances
    • Employer’s guides
  • AWARDS
    • Personnel Today Awards
    • The RAD Awards
  • Jobs
    • Find a job
    • Jobs by email
    • Careers advice
    • Post a job
  • Brightmine
    • Learn more
    • Products
    • Free trial
    • Request a quote
  • Webinars
  • Advertise
  • OHW+

Personnel Today

Register
Log in
Personnel Today
  • Home
    • All PT content
  • Email sign-up
  • Topics
    • HR Practice
    • Employee relations
    • Learning & training
    • Pay & benefits
    • Wellbeing
    • Recruitment & retention
    • HR strategy
    • HR Tech
    • The HR profession
    • Global
    • All HR topics
  • Legal
    • Case law
    • Commentary
    • Flexible working
    • Legal timetable
    • Maternity & paternity
    • Shared parental leave
    • Redundancy
    • TUPE
    • Disciplinary and grievances
    • Employer’s guides
  • AWARDS
    • Personnel Today Awards
    • The RAD Awards
  • Jobs
    • Find a job
    • Jobs by email
    • Careers advice
    • Post a job
  • Brightmine
    • Learn more
    • Products
    • Free trial
    • Request a quote
  • Webinars
  • Advertise
  • OHW+

Case lawEmployment lawData protection

Ownership of contacts lists after employment has ended

by Personnel Today 17 Jul 2007
by Personnel Today 17 Jul 2007

PennWell Publishing (UK) Limited v Isles

Who owns a contacts list maintained by an employee in Outlook on the employer’s computer system? In PennWell Publishing (UK) Limited v Isles, the High Court decided that the list belonged to the employer, despite the fact that it contained personal contacts and contacts that the employee had made before his employment had started.

Background
Mr Isles, a journalist, was employed as a publisher and conference chairman for PennWell. During his employment, he created and maintained a contacts list on PennWell’s Outlook system, which included personal contacts, journalistic contacts and contacts that he had made before his employment started, as well as business contacts that he developed in his role with PennWell.

After Isles left PennWell to set up a competing business, it discovered that he had downloaded the entire Outlook contacts list from his work laptop.

Isles’s contract stated that all documents used during employment belonged to the company and had to be returned before he left.

PennWell applied for an injunction for the return of the contacts list. Isles argued that most of the contacts on the list were personal to him.

Decision
The High Court had to decide whether the contacts list belonged exclusively to either PennWell or Isles or whether it was jointly owned by both.

The High Court said that where an address list is contained in Outlook or a similar software that is part of the employer’s e-mail system and backed-up by the employer, the database or list belongs to the employer and may not be copied or removed in its entirety by employees for use outside or after employment. The High Court said that it would be “highly desirable” for employers to publish e-mail policies to communicate this to employees. While PennWell had an appropriate e-mail policy, the policy had not been effectively communicated to Isles and, therefore, PennWell was not entitled to rely on it.

Had Isles maintained his list of contacts as a separate, private address book, he would most likely have been entitled to that list. The court distinguished between contacts developed for the purposes of employment, where removal of contact information would be detrimental to the employer, and other contacts that an employee might keep for career purposes.

The court concluded that the list belonged to PennWell, but that Isles could copy from it his journalistic contacts and those made before his employment started.

Sign up to our weekly round-up of HR news and guidance

Receive the Personnel Today Direct e-newsletter every Wednesday

OptOut
This field is for validation purposes and should be left unchanged.

Key implications 

The confusion over ownership of the contacts lists that led to this case coming to court highlights the need for clear policies on ownership of contacts information. Employers should as a minimum:

  • Review e-mail policies to ensure they clearly identify what information is considered to belong to the employer, and confirm that it may not be removed or copied.
  • Communicate e-mail policies to all existing staff and bring these to the attention of new employees.
  • Ensure that confidentiality and return of property provisions in contracts cover contacts information and state what information will be protected/must be returned after employment.
  • Consider giving employees the option of a personal contacts folder to maintain contacts that are personal and/or those that pre-date employment.

Judith Harris, professional support lawyer, Addleshaw Goddard

Personnel Today

Personnel Today articles are written by an expert team of award-winning journalists who have been covering HR and L&D for many years. Some of our content is attributed to "Personnel Today" for a number of reasons, including: when numerous authors are associated with writing or editing a piece; or when the author is unknown (particularly for older articles).

previous post
Easyjet and Ryanair must apply French employment laws to staff operating from the country, court rules
next post
Atos Origin, IT supplier for London’s 2012 Olympic Games, confirms some jobs will be in Barcelona

You may also like

Construction workers win compensation claim against defunct employer

9 May 2025

Zero-hours workers’ rights to be extended from beyond...

8 May 2025

Employment tribunal backlog up 23% in a year

7 May 2025

Ministers urged to outlaw misuse of NDAs

7 May 2025

‘Unacceptable to question integrity’ of Supreme Court judgment

2 May 2025

M&S pauses hiring as it deals with cyber...

2 May 2025

Employment Rights Bill must be tightened to protect...

1 May 2025

Lords criticise ‘opaque’, ‘on-the-hoof’ Employment Rights Bill

30 Apr 2025

Retail HRDs say Employment Rights Bill will have...

29 Apr 2025

Trans ex-judge to appeal Supreme Court biological sex...

29 Apr 2025

  • 2025 Employee Communications Report PROMOTED | HR and leadership...Read more
  • The Majority of Employees Have Their Eyes on Their Next Move PROMOTED | A staggering 65%...Read more
  • Prioritising performance management: Strategies for success (webinar) WEBINAR | In today’s fast-paced...Read more
  • Self-Leadership: The Key to Successful Organisations PROMOTED | Eletive is helping businesses...Read more
  • Retaining Female Talent: Four Ways to Reduce Workplace Drop Out PROMOTED | International Women’s Day...Read more

Personnel Today Jobs
 

Search Jobs

PERSONNEL TODAY

About us
Contact us
Browse all HR topics
Email newsletters
Content feeds
Cookies policy
Privacy policy
Terms and conditions

JOBS

Personnel Today Jobs
Post a job
Why advertise with us?

EVENTS & PRODUCTS

The Personnel Today Awards
The RAD Awards
Employee Benefits
Forum for Expatriate Management
OHW+
Whatmedia

ADVERTISING & PR

Advertising opportunities
Features list 2025

  • Facebook
  • Twitter
  • Instagram
  • Linkedin


© 2011 - 2025 DVV Media International Ltd

Personnel Today
  • Home
    • All PT content
  • Email sign-up
  • Topics
    • HR Practice
    • Employee relations
    • Learning & training
    • Pay & benefits
    • Wellbeing
    • Recruitment & retention
    • HR strategy
    • HR Tech
    • The HR profession
    • Global
    • All HR topics
  • Legal
    • Case law
    • Commentary
    • Flexible working
    • Legal timetable
    • Maternity & paternity
    • Shared parental leave
    • Redundancy
    • TUPE
    • Disciplinary and grievances
    • Employer’s guides
  • AWARDS
    • Personnel Today Awards
    • The RAD Awards
  • Jobs
    • Find a job
    • Jobs by email
    • Careers advice
    • Post a job
  • Brightmine
    • Learn more
    • Products
    • Free trial
    • Request a quote
  • Webinars
  • Advertise
  • OHW+