[luncheonmeat]

The late 2018/2019 incident definitely refers to the Singapore, Malaysia maritime dispute.

As for espionage and cyber hacking, all nations are equally guilty.

Read the Law Minister’s speech on Foreign Interference Tactics and Countermeasures at the RSIS Conference, published on 25 Sep 2019

Read points 54 to 56.

Tioh, all self respecting countries engage in some form of espionage. So far Bolehland haven't hack our system yet.

However you've veered off pt with your post which implies dat Sinpwn is pointing fingers at Bolehland's foreign interference when oily pate Sham was being diplomatic and speaking broadly abt general foreign meddling [using mainly Tiongkok examples].

Our own  diplomat [Mahbubahni] was banished after professing publicly his pro-tiongkok stance which was contrary to what PAPaya held.
The crazy Harvard ed Tiongkok professor was later deported back to Tiongkok for covertly meddling with our politics [link back to Kishore].

Bolehland is less of a worry dan Tiongkok for our garbagemen.