No evidence has been produced publicly and the firm has repeatedly denied the claims, but the allegations have led several Western countries to restrict Huawei's access to their markets.
In a letter to Norman Lamb MP, chair of the science and technology committee, Ryan Ding, an executive from the controversial Chinese technology company, pledged to spend £1.5 billion over five years to address security issues flagged last year.
It comes after concerns were raised previous year in the annual report...
He said that while some countries - including New Zealand, Australia and the United States - had "indeed taken measures to restrict Huawei business activities", some of the restrictions had been "exaggerated or even misinterpreted by the media".
"It is a complicated and involved process, and will take at least three to five years to see tangible results".More news: Trump, not particularly vigilant about diet, gets physical exam
Huawei's regional public affairs director, Austin Zhang, said there is no reason for the Polish government to exclude the Chinese firm from its future 5G network development.
"As was made clear in July's (report), the NCSC has concerns around a range of technical issues and has set out improvements the company must make", a spokeswoman said in a statement.
The new legislation was a last-minute addition by the government to a wide-ranging corporate law and would have required telecom operators to seek formal approval for the use of certain kinds of equipment considered to be particularly sensitive for spying or sabotage risks.
'Huawei has never and will never use UK-based hardware, software or information gathered in the United Kingdom or anywhere else globally, to assist other countries in gathering intelligence.
"Huawei is a closely watched company", he said.More news: NZ vs Ind 2nd T20: Hosts win toss and opt to bat
'Were Huawei ever to engage in malicious behaviour, it would not go unnoticed - and it would certainly destroy our business.
A hot potato: China is able to pump out mass quantities of low-priced tech products, but cellular networking equipment produced by Chinese companies is on the brink of a total ban from the United States according to administration insiders. For us, it is a matter of security or nothing; there is no third option.
The next British report is expected to be released in coming weeks.
Germany's federal cybersecurity agency is investigating whether China's Huawei Technologies could be a security threat after warnings from other countries, the Funke group of newspapers reported on Friday, citing Economy Minister Peter Altmaier.More news: House Panel Votes to Authorize Subpoena for Acting Attorney General