Bank Negara Malaysia is issuing a new RM100 note, the highest denomination in a new design Malaysian currency notes series (3rd series). The new series incorporate new security features and retain some of the existing security features to deter counterfeiting. The new series will circulate alongside the existing series until the existing series are gradually phased out.

The security features of the RM100 denomination are highlighted here as a guide to the public. These features include the security thread with the repeated "BNM RM100" text, three-dimensional watermark portrait, optical variable strip known as "LEAD®", anticopy feature known as "PEAK®" and security fibres in the paper. The new RM100 note retains the brown and purple predominant colours of the existing design RM100 note. The size of the note is also slightly reduced to facilitate easier handling and to be consistent with size reduction of other denominations in the new series. The intaglio (raised printing) of the portrait of the first Seri Paduka Baginda Yang di-Pertuan Agong is retained as a dominant feature.

A horizontal "novel" style serial number is positioned in the top left hand corner, printed in black magnetic fluorescent ink. On the right hand edge of the note (to the right of the portrait watermark), a vertical "novel" serial number is printed in red fluorescent ink.
The public is advised to look carefully to differentiate the genuine notes from the counterfeits based on the features as outlined.
Security Features:
Watermark Portrait (1)
The shaded watermark can be recognised by tints that are lighter or darker than the surrounding paper. This watermark portrait which has a three-dimensional effect appears soft and shady without sharp outlines. At the base of the watermark, the numeral 100 is clearly visible.
Security Fibres (2)
When viewed under ultra-violet light, the security fibres in the paper become visible in three colours: red, yellow and blue.
Security Thread (3)

PEAK? (Printed and Embossed Anticopy Key) (4)
When changing the angle of view by shifting the note, the numeral 100 will be revealed in the centre of the PEAK? square. The whole square will glow under ultra-violet light. When held against the light, three open spaces on the obverse side will register perfectly with equal printed markings on the reverse side.
LEAD? (Longlasting Economical Anticopy Device) (5)
Its holographic design represents the same motifs as used in the purple area with which the LEAD? strip is partially overprinted as well as the words "RM100" and "BNM". The colours of these elements change when the view angle is shifted. On both sides of the strip, a dedicated print pattern becomes visible under ultra-violet light.
Intaglio Print (6)
The intaglio print is a raised printing effect produced by applying layers of tactile inks on various parts of the obverse and reverse sides of the notes, such as the portrait of the First Seri Paduka Baginda Yang di-Pertuan Agong, denomination figures, ornamental elements and the wordings "BANK NEGARA MALAYSIA".
Phosphoresence Square (7)
In this square, the letters "BNM" and the numeral 100 will become visible under ultra-violet light.
Perfect See-Through Register (8)
When the note is held against the light, the hibiscus flower on the obverse will register perfectly with the same flower on the reverse of the note. This flower will also glow under ultra-violet light.
Invisible Fluorescent Elements (9)
Various elements of the background on the obverse and reverse will fluoresce in different colours when viewed under ultra-violet light.
Novel Numbering (10)
The serial numbers increase in size to make it more difficult to counterfeit. The numbers fluoresce under ultra-violet light.
Braille Feature (11)
The diamond shape braille markings feature a layer of tactile ink printed in intaglio that can be felt by touching.
Anti-Scanner/Copier Features (12)
The note features certain areas, designed such that these will change appearance when copied/scanned.
Modulated Micro-Letterings (13)
In this tactile rectangle, the micro-letterings with the text RM100 are all legible under a magnifying glass and collectively form the word "BNM" if viewed from a distance.
Background Micro-Letterings (14)
The pattern of the purplish rectangles contains legible micro-letterings of "BNM" when viewed under a magnifying glass while some of the purplish rectangles will fluoresce under ultra-violet light.
Micro-Letterings (15)
Line at the end of the car assembly lines contain legible micro-letterings of the word "BANKNEGARAMALAYSIA" in light purple when viewed under a magnifying glass.-letterings of the word "BANKNEGARAMALAYSIA" in light purple when viewed under a magnifying glass.
Thus article of a hallmark of authenticity banknotes RM100 3rd series, may be useful.
Source: Bank Negara Malaysia