Justice Minister Judith Collins says her husband's laptop was targeted in a recent break-in.
It comes after National MP Mark Mitchell and party pollster David Farrar all revealed they have been victims. Blogger Cameron Slater also claims his emails were hacked.
All four are at the centre of claims in Nicky Hager's recent book Dirty Politics.
Collins says the office of her husband David Wong-Tung was targeted about six weeks ago. A lock on the cabinet containing his laptop was smashed.
Nothing, including cash left in the office by staff, was taken.
A complaint was laid with police. Collins said: "I'm not aware of a hacking attempt. [It's] just very strange."
Mitchell's office was broken into in September and October last year, and a laptop and phones were stolen. Mitchell says his email account was hacked at the same time.
Slater claims the emails and direct messages which Hager's book was based on were accessed by a hacker paid by Internet Party founder Kim Dotcom.
Both Hager and Dotcom have denied this.
Wong-Tung is a director of Oravida, owned by a National party donor. Collins spent much of this year defending allegations of a conflict of interest after she visited the company's office in China while on a tax-payer funded trip.
- Fairfax Media
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