The grammar in the first few paragraphs are broken and the rest of the article does not clarify precisely what potential exploiters could do to the data.
If the teleport the
Playerarrived in the current place due to was initiated on a server (as opposed to a client) the
Player’steleportData is included in the dictionary returned by this function.
This should be “If the Player arrived in the current place via a a Teleport that was initiated on a server (and not on a client), the teleportData supplied in the function will be included in the dictionary returned by this function.”
However, as this data is transmitted by the client, it not 100% secure. Although the user cannot modify this data it is possible for them to view it or insert data from a previous teleport.
What does this mean? Can they modify existing keys or can they add more keys but not modify existing ones? This is confusing, and the rest of the article doesn’t clarify what exactly this phrase means.