Mr Key said issues about Huawei had been raised and considered.
Communications and Information Technology Minister Amy Adams confirmed today that security threats had been raised in the process of doing the broadband contracts, but would not comment on which companies those related to, or what steps had been taken to ensure security.
"We take security very seriously, but we've obviously responded to the threats that we're aware of and put in place steps to deal with that,'' she said.
"Because it's a matter of security we have to be very careful how we discuss it and it's appropriate we keep that reasonably tightly controlled.''
The minister said she had not spoken to Australia about the steps they had taken with regard to Huawei.
"I'm aware of the action that they've taken and I'll discuss that with my colleagues going forward, but I'm confident that we've treated this matter seriously in New Zealand and we've responded appropriately.''